222331121303021 has 4 divisors (see below), whose sum is σ = 222332469231552. Its totient is φ = 222329773374492.

The previous prime is 222331121303009. The next prime is 222331121303041. The reversal of 222331121303021 is 120303121133222.

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 a de Polignac number, because none of the positive numbers 2^k-222331121303021 is a prime.

It is a super-2 number, since 2×222331121303021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222331121303041) 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, 673716821 + ... + 674046746.

It is an arithmetic number, because the mean of its divisors is an integer number (55583117307888).

Almost surely, 2^{222331121303021} is an apocalyptic number.

It is an amenable number.

222331121303021 is a deficient number, since it is larger than the sum of its proper divisors (1347928531).

222331121303021 is a wasteful number, since it uses less digits than its factorization.

222331121303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347928530.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 222331121303021 its reverse (120303121133222), we get a palindrome (342634242436243).

The spelling of 222331121303021 in words is "two hundred twenty-two trillion, three hundred thirty-one billion, one hundred twenty-one million, three hundred three thousand, twenty-one".