22121202102 has 16 divisors (see below), whose sum is σ = 44466987312. Its totient is φ = 7336303520.

The previous prime is 22121202097. The next prime is 22121202107. The reversal of 22121202102 is 20120212122.

It is an interprime number because it is at equal distance from previous prime (22121202097) and next prime (22121202107).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121202107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9356349 + ... + 9358712.

It is an arithmetic number, because the mean of its divisors is an integer number (2779186707).

Almost surely, 2^22121202102 is an apocalyptic number.

22121202102 is an abundant number, since it is smaller than the sum of its proper divisors (22345785210).

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

22121202102 is a wasteful number, since it uses less digits than its factorization.

22121202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18715263.

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

Adding to 22121202102 its reverse (20120212122), we get a palindrome (42241414224).

The spelling of 22121202102 in words is "twenty-two billion, one hundred twenty-one million, two hundred two thousand, one hundred two".