111212210022 has 16 divisors (see below), whose sum is σ = 228435891312. Its totient is φ = 36068824800.

The previous prime is 111212209993. The next prime is 111212210033. The reversal of 111212210022 is 220012212111.

It is a junction number, because it is equal to n+sod(n) for n = 111212209983 and 111212210010.

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, 250477729 + ... + 250478172.

It is an arithmetic number, because the mean of its divisors is an integer number (14277243207).

Almost surely, 2^111212210022 is an apocalyptic number.

111212210022 is an abundant number, since it is smaller than the sum of its proper divisors (117223681290).

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

111212210022 is a wasteful number, since it uses less digits than its factorization.

111212210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500955943.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111212210022 its reverse (220012212111), we get a palindrome (331224422133).

The spelling of 111212210022 in words is "one hundred eleven billion, two hundred twelve million, two hundred ten thousand, twenty-two".