22222012211012 has 24 divisors (see below), whose sum is σ = 39029954271000. Its totient is φ = 11070653504256.

The previous prime is 22222012210999. The next prime is 22222012211023. The reversal of 22222012211012 is 21011221022222.

It can be written as a sum of positive squares in 4 ways, for example, as 16155367351876 + 6066644859136 = 4019374^2 + 2463056^2 .

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, 5534087 + ... + 8664302.

It is an arithmetic number, because the mean of its divisors is an integer number (1626248094625).

Almost surely, 2^{22222012211012} is an apocalyptic number.

It is an amenable number.

22222012211012 is a deficient number, since it is larger than the sum of its proper divisors (16807942059988).

22222012211012 is a wasteful number, since it uses less digits than its factorization.

22222012211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14199815 (or 14199813 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22222012211012 its reverse (21011221022222), we get a palindrome (43233233233234).

The spelling of 22222012211012 in words is "twenty-two trillion, two hundred twenty-two billion, twelve million, two hundred eleven thousand, twelve".