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20202002021112 = 23331127213804949
BaseRepresentation
bin1001001011111101001010…
…01001110111101011111000
32122112021220020220101211020
410211332211021313223320
510121442200004133422
6110544401022302440
74153355304616062
oct445764511675370
978467806811736
1020202002021112
11648969152633a
122323349727a20
13b3706b307192
144dbad41a2732
15250778e6b95c
hex125fa5277af8

20202002021112 has 64 divisors (see below), whose sum is σ = 52544704512000. Its totient is φ = 6465461627520.

The previous prime is 20202002021099. The next prime is 20202002021137. The reversal of 20202002021112 is 21112020020202.

It is a super-2 number, since 2×202020020211122 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20202002021091 and 20202002021100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106807987 + ... + 106996962.

It is an arithmetic number, because the mean of its divisors is an integer number (821011008000).

Almost surely, 220202002021112 is an apocalyptic number.

It is an amenable number.

20202002021112 is an abundant number, since it is smaller than the sum of its proper divisors (32342702490888).

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

20202002021112 is a wasteful number, since it uses less digits than its factorization.

20202002021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213805116 (or 213805112 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20202002021112 its reverse (21112020020202), we get a palindrome (41314022041314).

The spelling of 20202002021112 in words is "twenty trillion, two hundred two billion, two million, twenty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 127 186 248 254 372 381 508 744 762 1016 1524 3048 3937 7874 11811 15748 23622 31496 47244 94488 213804949 427609898 641414847 855219796 1282829694 1710439592 2565659388 5131318776 6627953419 13255906838 19883860257 26511813676 27153228523 39767720514 53023627352 54306457046 79535441028 81459685569 108612914092 159070882056 162919371138 217225828184 325838742276 651677484552 841750084213 1683500168426 2525250252639 3367000336852 5050500505278 6734000673704 10101001010556 20202002021112