222131211001 has 4 divisors (see below), whose sum is σ = 253864241152. Its totient is φ = 190398180852.

The previous prime is 222131210993. The next prime is 222131211061. The reversal of 222131211001 is 100112131222.

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 222131211001 - 2³ = 222131210993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222131211061) 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, 15866515065 + ... + 15866515078.

It is an arithmetic number, because the mean of its divisors is an integer number (63466060288).

Almost surely, 2^222131211001 is an apocalyptic number.

It is an amenable number.

222131211001 is a deficient number, since it is larger than the sum of its proper divisors (31733030151).

222131211001 is an equidigital number, since it uses as much as digits as its factorization.

222131211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31733030150.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 222131211001 its reverse (100112131222), we get a palindrome (322243342223).

The spelling of 222131211001 in words is "two hundred twenty-two billion, one hundred thirty-one million, two hundred eleven thousand, one".