22212121111102 has 32 divisors (see below), whose sum is σ = 37330216648704. Its totient is φ = 9842928127200.

The previous prime is 22212121111087. The next prime is 22212121111121. The reversal of 22212121111102 is 20111112121222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22212121111102.

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 15 ways as a sum of consecutive naturals, for example, 108395524 + ... + 108600247.

It is an arithmetic number, because the mean of its divisors is an integer number (1166569270272).

Almost surely, 2^{22212121111102} is an apocalyptic number.

22212121111102 is a deficient number, since it is larger than the sum of its proper divisors (15118095537602).

22212121111102 is a wasteful number, since it uses less digits than its factorization.

22212121111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216995944.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22212121111102 its reverse (20111112121222), we get a palindrome (42323233232324).

The spelling of 22212121111102 in words is "twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".