22121111102 has 16 divisors (see below), whose sum is σ = 33526703952. Its totient is φ = 10945651200.

The previous prime is 22121111101. The next prime is 22121111137. The reversal of 22121111102 is 20111112122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121111101) 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, 400913 + ... + 452739.

It is an arithmetic number, because the mean of its divisors is an integer number (2095418997).

Almost surely, 2^22121111102 is an apocalyptic number.

22121111102 is a deficient number, since it is larger than the sum of its proper divisors (11405592850).

22121111102 is a wasteful number, since it uses less digits than its factorization.

22121111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54043.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22121111102 its reverse (20111112122), we get a palindrome (42232223224).

The spelling of 22121111102 in words is "twenty-two billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".