12212310311020 has 12 divisors (see below), whose sum is σ = 25645851653184. Its totient is φ = 4884924124400.

The previous prime is 12212310311017. The next prime is 12212310311021. The reversal of 12212310311020 is 2011301321221.

It is not an unprimeable number, because it can be changed into a prime (12212310311021) 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, 305307757756 + ... + 305307757795.

It is an arithmetic number, because the mean of its divisors is an integer number (2137154304432).

Almost surely, 2^{12212310311020} is an apocalyptic number.

12212310311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212310311020 is an abundant number, since it is smaller than the sum of its proper divisors (13433541342164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12212310311020 is a wasteful number, since it uses less digits than its factorization.

12212310311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610615515560 (or 610615515558 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12212310311020 its reverse (2011301321221), we get a palindrome (14223611632241).

The spelling of 12212310311020 in words is "twelve trillion, two hundred twelve billion, three hundred ten million, three hundred eleven thousand, twenty".