31301122201212 has 24 divisors (see below), whose sum is σ = 73081570805712. Its totient is φ = 10427190400000.

The previous prime is 31301122201199. The next prime is 31301122201241. The reversal of 31301122201212 is 21210222110313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814605039 + ... + 814643462.

It is an arithmetic number, because the mean of its divisors is an integer number (3045065450238).

Almost surely, 2^{31301122201212} is an apocalyptic number.

It is an amenable number.

31301122201212 is an abundant number, since it is smaller than the sum of its proper divisors (41780448604500).

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

31301122201212 is a wasteful number, since it uses less digits than its factorization.

31301122201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629250109 (or 1629250107 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31301122201212 its reverse (21210222110313), we get a palindrome (52511344311525).

The spelling of 31301122201212 in words is "thirty-one trillion, three hundred one billion, one hundred twenty-two million, two hundred one thousand, two hundred twelve".