222122100012 has 24 divisors (see below), whose sum is σ = 520998438912. Its totient is φ = 73653051600.

The previous prime is 222122099939. The next prime is 222122100061. The reversal of 222122100012 is 210001221222.

It is a junction number, because it is equal to n+sod(n) for n = 222122099964 and 222122100000.

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, 48453664 + ... + 48458247.

It is an arithmetic number, because the mean of its divisors is an integer number (21708268288).

Almost surely, 2^222122100012 is an apocalyptic number.

It is an amenable number.

222122100012 is an abundant number, since it is smaller than the sum of its proper divisors (298876338900).

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

222122100012 is a wasteful number, since it uses less digits than its factorization.

222122100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96912109 (or 96912107 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222122100012 its reverse (210001221222), we get a palindrome (432123321234).

The spelling of 222122100012 in words is "two hundred twenty-two billion, one hundred twenty-two million, one hundred thousand, twelve".