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1020211200012 = 223376743978121
BaseRepresentation
bin11101101100010010101…
…00111000000000001100
310121112100021100202200110
432312021110320000030
5113203343031400022
62100402322400020
7133464533055264
oct16661124700014
93545307322613
101020211200012
1136373a697684
12145882800010
137528964c5a4
14375427c87a4
151b810d0000c
hexed8953800c

1020211200012 has 96 divisors (see below), whose sum is σ = 2487004495360. Its totient is φ = 325194186240.

The previous prime is 1020211200011. The next prime is 1020211200059. The reversal of 1020211200012 is 2100021120201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1020211200011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13020312 + ... + 13098432.

Almost surely, 21020211200012 is an apocalyptic number.

1020211200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020211200012 is an abundant number, since it is smaller than the sum of its proper divisors (1466793295348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020211200012 is a wasteful number, since it uses less digits than its factorization.

1020211200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78671 (or 78669 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020211200012 its reverse (2100021120201), we get a palindrome (3120232320213).

The spelling of 1020211200012 in words is "one trillion, twenty billion, two hundred eleven million, two hundred thousand, twelve".

Divisors: 1 2 3 4 6 12 37 67 74 111 134 148 201 222 268 402 439 444 804 878 1317 1756 2479 2634 4958 5268 7437 9916 14874 16243 29413 29748 32486 48729 58826 64972 78121 88239 97458 117652 156242 176478 194916 234363 312484 352956 468726 937452 1088281 2176562 2890477 3264843 4353124 5234107 5780954 6529686 8671431 10468214 11561908 13059372 15702321 17342862 20936428 31404642 34295119 34685724 62809284 68590238 102885357 137180476 193661959 205770714 387323918 411541428 580985877 774647836 1161971754 1268919403 2297772973 2323943508 2537838806 3806758209 4595545946 5075677612 6893318919 7613516418 9191091892 13786637838 15227032836 27573275676 85017600001 170035200002 255052800003 340070400004 510105600006 1020211200012