21002011112022 has 16 divisors (see below), whose sum is σ = 43830284060160. Its totient is φ = 6696293397992.

The previous prime is 21002011112003. The next prime is 21002011112029. The reversal of 21002011112022 is 22021111020012.

It is a junction number, because it is equal to n+sod(n) for n = 21002011111992 and 21002011112010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002011112029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 76094243022 + ... + 76094243297.

It is an arithmetic number, because the mean of its divisors is an integer number (2739392753760).

Almost surely, 2^{21002011112022} is an apocalyptic number.

21002011112022 is an abundant number, since it is smaller than the sum of its proper divisors (22828272948138).

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

21002011112022 is a wasteful number, since it uses less digits than its factorization.

21002011112022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152188486347.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21002011112022 its reverse (22021111020012), we get a palindrome (43023122132034).

The spelling of 21002011112022 in words is "twenty-one trillion, two billion, eleven million, one hundred twelve thousand, twenty-two".