222021122310031 has 4 divisors (see below), whose sum is σ = 242204860701864. Its totient is φ = 201837383918200.

The previous prime is 222021122309983. The next prime is 222021122310067. The reversal of 222021122310031 is 130013221120222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222021122310031 - 2²⁷ = 222020988092303 is a prime.

It is a super-2 number, since 2×222021122310031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222021122309984 and 222021122310011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021122310431) 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, 10091869195900 + ... + 10091869195921.

It is an arithmetic number, because the mean of its divisors is an integer number (60551215175466).

Almost surely, 2^{222021122310031} is an apocalyptic number.

222021122310031 is a deficient number, since it is larger than the sum of its proper divisors (20183738391833).

222021122310031 is a wasteful number, since it uses less digits than its factorization.

222021122310031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20183738391832.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 222021122310031 its reverse (130013221120222), we get a palindrome (352034343430253).

The spelling of 222021122310031 in words is "two hundred twenty-two trillion, twenty-one billion, one hundred twenty-two million, three hundred ten thousand, thirty-one".