21112022122102 has 16 divisors (see below), whose sum is σ = 33492756484800. Its totient is φ = 9953036117640.

The previous prime is 21112022122043. The next prime is 21112022122117. The reversal of 21112022122102 is 20122122021112.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 21112022122102.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1316531152 + ... + 1316547187.

It is an arithmetic number, because the mean of its divisors is an integer number (2093297280300).

Almost surely, 2^{21112022122102} is an apocalyptic number.

21112022122102 is a deficient number, since it is larger than the sum of its proper divisors (12380734362698).

21112022122102 is a wasteful number, since it uses less digits than its factorization.

21112022122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633078571.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21112022122102 its reverse (20122122021112), we get a palindrome (41234144143214).

The spelling of 21112022122102 in words is "twenty-one trillion, one hundred twelve billion, twenty-two million, one hundred twenty-two thousand, one hundred two".