221222210112122 has 32 divisors (see below), whose sum is σ = 354927026826000. Its totient is φ = 103050830988288.

The previous prime is 221222210112083. The next prime is 221222210112133. The reversal of 221222210112122 is 221211012222122.

It can be written as a sum of positive squares in 8 ways, for example, as 220315866127681 + 906343984441 = 14843041^2 + 952021^2 .

It is a super-2 number, since 2×221222210112122² (a number of 29 digits) contains 22 as substring.

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, 80770997 + ... + 83464952.

Almost surely, 2^{221222210112122} is an apocalyptic number.

221222210112122 is a deficient number, since it is larger than the sum of its proper divisors (133704816713878).

221222210112122 is a wasteful number, since it uses less digits than its factorization.

221222210112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164236370.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 221222210112122 its reverse (221211012222122), we get a palindrome (442433222334244).

The spelling of 221222210112122 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred ten million, one hundred twelve thousand, one hundred twenty-two".