31100201032212 has 36 divisors (see below), whose sum is σ = 84661658366740. Its totient is φ = 9569292625152.

The previous prime is 31100201032211. The next prime is 31100201032267. The reversal of 31100201032212 is 21223010200113.

31100201032212 is a `hidden beast` number, since 31 + 100 + 201 + 0 + 322 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5106171779856 + 25994029252356 = 2259684^2 + 5098434^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×31100201032212² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100201032211) 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, 33226710037 + ... + 33226710972.

Almost surely, 2^{31100201032212} is an apocalyptic number.

It is an amenable number.

31100201032212 is an abundant number, since it is smaller than the sum of its proper divisors (53561457334528).

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

31100201032212 is a wasteful number, since it uses less digits than its factorization.

31100201032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66453421032 (or 66453421027 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31100201032212 its reverse (21223010200113), we get a palindrome (52323211232325).

The spelling of 31100201032212 in words is "thirty-one trillion, one hundred billion, two hundred one million, thirty-two thousand, two hundred twelve".