2231222313021 has 32 divisors (see below), whose sum is σ = 3314491125120. Its totient is φ = 1325629536000.

The previous prime is 2231222312927. The next prime is 2231222313029. The reversal of 2231222313021 is 1203132221322.

It is not a de Polignac number, because 2231222313021 - 2⁹ = 2231222312509 is a prime.

It is a super-3 number, since 3×2231222313021³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2231222312982 and 2231222313000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231222313029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21098086 + ... + 21203576.

It is an arithmetic number, because the mean of its divisors is an integer number (103577847660).

Almost surely, 2^{2231222313021} is an apocalyptic number.

It is an amenable number.

2231222313021 is a deficient number, since it is larger than the sum of its proper divisors (1083268812099).

2231222313021 is a wasteful number, since it uses less digits than its factorization.

2231222313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124237.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 2231222313021 its reverse (1203132221322), we get a palindrome (3434354534343).

The spelling of 2231222313021 in words is "two trillion, two hundred thirty-one billion, two hundred twenty-two million, three hundred thirteen thousand, twenty-one".