31214440100220 has 96 divisors (see below), whose sum is σ = 94125922480128. Its totient is φ = 7683360198912.

The previous prime is 31214440100203. The next prime is 31214440100269. The reversal of 31214440100220 is 2200104441213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31671717 + ... + 32642403.

It is an arithmetic number, because the mean of its divisors is an integer number (980478359168).

Almost surely, 2^{31214440100220} is an apocalyptic number.

31214440100220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31214440100220 is an abundant number, since it is smaller than the sum of its proper divisors (62911482379908).

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

31214440100220 is a wasteful number, since it uses less digits than its factorization.

31214440100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011939 (or 1011937 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31214440100220 its reverse (2200104441213), we get a palindrome (33414544541433).

The spelling of 31214440100220 in words is "thirty-one trillion, two hundred fourteen billion, four hundred forty million, one hundred thousand, two hundred twenty".