12212022112 has 12 divisors (see below), whose sum is σ = 24042418596. Its totient is φ = 6106011040.

The previous prime is 12212022071. The next prime is 12212022167. The reversal of 12212022112 is 21122021221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190812814 + ... + 190812877.

It is an arithmetic number, because the mean of its divisors is an integer number (2003534883).

Almost surely, 2^12212022112 is an apocalyptic number.

It is an amenable number.

12212022112 is a deficient number, since it is larger than the sum of its proper divisors (11830396484).

12212022112 is an equidigital number, since it uses as much as digits as its factorization.

12212022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381625701 (or 381625693 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12212022112 its reverse (21122021221), we get a palindrome (33334043333).

The spelling of 12212022112 in words is "twelve billion, two hundred twelve million, twenty-two thousand, one hundred twelve".