222031211041021 has 4 divisors (see below), whose sum is σ = 231684741955872. Its totient is φ = 212377680126172.

The previous prime is 222031211041009. The next prime is 222031211041043. The reversal of 222031211041021 is 120140112130222.

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 222031211041021 - 2³¹ = 222029063557373 is a prime.

It is a super-2 number, since 2×222031211041021² (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 = 222031211040983 and 222031211041001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222031211047021) 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, 4826765457391 + ... + 4826765457436.

It is an arithmetic number, because the mean of its divisors is an integer number (57921185488968).

Almost surely, 2^{222031211041021} is an apocalyptic number.

It is an amenable number.

222031211041021 is a deficient number, since it is larger than the sum of its proper divisors (9653530914851).

222031211041021 is an equidigital number, since it uses as much as digits as its factorization.

222031211041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9653530914850.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 222031211041021 its reverse (120140112130222), we get a palindrome (342171323171243).

The spelling of 222031211041021 in words is "two hundred twenty-two trillion, thirty-one billion, two hundred eleven million, forty-one thousand, twenty-one".