21112021101022 has 16 divisors (see below), whose sum is σ = 33668391324960. Its totient is φ = 9906543124192.

The previous prime is 21112021101013. The next prime is 21112021101109. The reversal of 21112021101022 is 22010112021112.

It is a super-2 number, since 2×21112021101022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21112021100987 and 21112021101005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4329780397 + ... + 4329785272.

It is an arithmetic number, because the mean of its divisors is an integer number (2104274457810).

Almost surely, 2^{21112021101022} is an apocalyptic number.

21112021101022 is a deficient number, since it is larger than the sum of its proper divisors (12556370223938).

21112021101022 is a wasteful number, since it uses less digits than its factorization.

21112021101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8659565747.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21112021101022 its reverse (22010112021112), we get a palindrome (43122133122134).

The spelling of 21112021101022 in words is "twenty-one trillion, one hundred twelve billion, twenty-one million, one hundred one thousand, twenty-two".