222101122012 has 48 divisors (see below), whose sum is σ = 486308954880. Its totient is φ = 86224924800.

The previous prime is 222101121947. The next prime is 222101122027. The reversal of 222101122012 is 210221101222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196562 + ... + 1369657.

It is an arithmetic number, because the mean of its divisors is an integer number (10131436560).

Almost surely, 2^222101122012 is an apocalyptic number.

222101122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222101122012 is an abundant number, since it is smaller than the sum of its proper divisors (264207832868).

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

222101122012 is a wasteful number, since it uses less digits than its factorization.

222101122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566522 (or 2566520 counting only the distinct ones).

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

Adding to 222101122012 its reverse (210221101222), we get a palindrome (432322223234).

The spelling of 222101122012 in words is "two hundred twenty-two billion, one hundred one million, one hundred twenty-two thousand, twelve".