12212131231301 has 4 divisors (see below), whose sum is σ = 12212375275104. Its totient is φ = 12211887187500.

The previous prime is 12212131231291. The next prime is 12212131231369. The reversal of 12212131231301 is 10313213121221.

It is a happy number.

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 12212131231301 - 2²⁶ = 12212064122437 is a prime.

It is a super-2 number, since 2×12212131231301² (a number of 27 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 (12212131251301) 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, 121946825 + ... + 122046926.

It is an arithmetic number, because the mean of its divisors is an integer number (3053093818776).

Almost surely, 2^{12212131231301} is an apocalyptic number.

It is an amenable number.

12212131231301 is a deficient number, since it is larger than the sum of its proper divisors (244043803).

12212131231301 is an equidigital number, since it uses as much as digits as its factorization.

12212131231301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244043802.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12212131231301 its reverse (10313213121221), we get a palindrome (22525344352522).

The spelling of 12212131231301 in words is "twelve trillion, two hundred twelve billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred one".