222100022111121 has 96 divisors (see below), whose sum is σ = 409452676079616. Its totient is φ = 112653583056000.

The previous prime is 222100022111101. The next prime is 222100022111147. The reversal of 222100022111121 is 121111220001222.

222100022111121 is a `hidden beast` number, since 222 + 100 + 0 + 221 + 1 + 1 + 121 = 666.

It is not a de Polignac number, because 222100022111121 - 2²³ = 222100013722513 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222100022111094 and 222100022111103.

It is not an unprimeable number, because it can be changed into a prime (222100022111101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5613876 + ... + 21810906.

It is an arithmetic number, because the mean of its divisors is an integer number (4265132042496).

Almost surely, 2^{222100022111121} is an apocalyptic number.

222100022111121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222100022111121 is a deficient number, since it is larger than the sum of its proper divisors (187352653968495).

222100022111121 is a wasteful number, since it uses less digits than its factorization.

222100022111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16197523 (or 16197520 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222100022111121 its reverse (121111220001222), we get a palindrome (343211242112343).

The spelling of 222100022111121 in words is "two hundred twenty-two trillion, one hundred billion, twenty-two million, one hundred eleven thousand, one hundred twenty-one".