20113021030212 has 72 divisors (see below), whose sum is σ = 55695242977920. Its totient is φ = 6069353344320.

The previous prime is 20113021030177. The next prime is 20113021030229. The reversal of 20113021030212 is 21203012031102.

20113021030212 is a `hidden beast` number, since 20 + 1 + 130 + 210 + 302 + 1 + 2 = 666.

It is a super-2 number, since 2×20113021030212² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106161543 + ... + 106350830.

It is an arithmetic number, because the mean of its divisors is an integer number (773545041360).

Almost surely, 2^{20113021030212} is an apocalyptic number.

20113021030212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20113021030212 is an abundant number, since it is smaller than the sum of its proper divisors (35582221947708).

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

20113021030212 is a wasteful number, since it uses less digits than its factorization.

20113021030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212512633 (or 212512628 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20113021030212 its reverse (21203012031102), we get a palindrome (41316033061314).

The spelling of 20113021030212 in words is "twenty trillion, one hundred thirteen billion, twenty-one million, thirty thousand, two hundred twelve".