22222121102 has 16 divisors (see below), whose sum is σ = 35284526640. Its totient is φ = 10478432832.

The previous prime is 22222121093. The next prime is 22222121111. The reversal of 22222121102 is 20112122222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22222121093) and next prime (22222121111).

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, 4452623 + ... + 4457610.

It is an arithmetic number, because the mean of its divisors is an integer number (2205282915).

Almost surely, 2^22222121102 is an apocalyptic number.

22222121102 is a deficient number, since it is larger than the sum of its proper divisors (13062405538).

22222121102 is a wasteful number, since it uses less digits than its factorization.

22222121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8910307.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22222121102 its reverse (20112122222), we get a palindrome (42334243324).

The spelling of 22222121102 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".