222121031113 has 4 divisors (see below), whose sum is σ = 222137918928. Its totient is φ = 222104143300.

The previous prime is 222121031063. The next prime is 222121031131. The reversal of 222121031113 is 311130121222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222121031113 - 2²¹ = 222118933961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121031413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8424163 + ... + 8450488.

It is an arithmetic number, because the mean of its divisors is an integer number (55534479732).

Almost surely, 2^222121031113 is an apocalyptic number.

It is an amenable number.

222121031113 is a deficient number, since it is larger than the sum of its proper divisors (16887815).

222121031113 is a wasteful number, since it uses less digits than its factorization.

222121031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16887814.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 222121031113 its reverse (311130121222), we get a palindrome (533251152335).

The spelling of 222121031113 in words is "two hundred twenty-two billion, one hundred twenty-one million, thirty-one thousand, one hundred thirteen".