21122022102 has 32 divisors (see below), whose sum is σ = 42777745920. Its totient is φ = 6951822240.

The previous prime is 21122022067. The next prime is 21122022109. The reversal of 21122022102 is 20122022112.

It is a super-2 number, since 2×21122022102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122022109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920424 + ... + 943092.

It is an arithmetic number, because the mean of its divisors is an integer number (1336804560).

Almost surely, 2^21122022102 is an apocalyptic number.

21122022102 is an abundant number, since it is smaller than the sum of its proper divisors (21655723818).

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

21122022102 is a wasteful number, since it uses less digits than its factorization.

21122022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24628.

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

Adding to 21122022102 its reverse (20122022112), we get a palindrome (41244044214).

The spelling of 21122022102 in words is "twenty-one billion, one hundred twenty-two million, twenty-two thousand, one hundred two".