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2010212100020 = 225100510605001
BaseRepresentation
bin11101010000001001111…
…110100110011110110100
321010011201010201021121202
4131100021332212132310
5230413403244200040
64135251221432032
7265142633631305
oct35201176463664
97104633637552
102010212100020
11705587362773
12285713b6b618
131177401844c7
146d41ac647ac
15374547d5015
hex1d409fa67b4

2010212100020 has 12 divisors (see below), whose sum is σ = 4221445410084. Its totient is φ = 804084840000.

The previous prime is 2010212100007. The next prime is 2010212100023. The reversal of 2010212100020 is 200012120102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 252980832784 + 1757231267236 = 502972^2 + 1325606^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2010212099974 and 2010212100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010212100023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50255302481 + ... + 50255302520.

It is an arithmetic number, because the mean of its divisors is an integer number (351787117507).

Almost surely, 22010212100020 is an apocalyptic number.

2010212100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010212100020 is an abundant number, since it is smaller than the sum of its proper divisors (2211233310064).

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

2010212100020 is a wasteful number, since it uses less digits than its factorization.

2010212100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100510605010 (or 100510605008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2010212100020 its reverse (200012120102), we get a palindrome (2210224220122).

The spelling of 2010212100020 in words is "two trillion, ten billion, two hundred twelve million, one hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 100510605001 201021210002 402042420004 502553025005 1005106050010 2010212100020