12210000022031 has 12 divisors (see below), whose sum is σ = 14203675469808. Its totient is φ = 10465562473632.

The previous prime is 12210000021943. The next prime is 12210000022037. The reversal of 12210000022031 is 13022000001221.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12210000022031 is a prime.

It is a super-2 number, since 2×12210000022031² (a number of 27 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 = 12210000021997 and 12210000022015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210000022037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1672190 + ... + 5216916.

It is an arithmetic number, because the mean of its divisors is an integer number (1183639622484).

Almost surely, 2^{12210000022031} is an apocalyptic number.

12210000022031 is a deficient number, since it is larger than the sum of its proper divisors (1993675447777).

12210000022031 is an equidigital number, since it uses as much as digits as its factorization.

12210000022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615038 (or 3615031 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12210000022031 its reverse (13022000001221), we get a palindrome (25232000023252).

The spelling of 12210000022031 in words is "twelve trillion, two hundred ten billion, twenty-two thousand, thirty-one".