31212003222133 has 16 divisors (see below), whose sum is σ = 32976928488960. Its totient is φ = 29493052646400.

The previous prime is 31212003222047. The next prime is 31212003222199. The reversal of 31212003222133 is 33122230021213.

It is a cyclic number.

It is not a de Polignac number, because 31212003222133 - 2²¹ = 31212001124981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31212003222098 and 31212003222107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212003222733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26911528 + ... + 28047358.

It is an arithmetic number, because the mean of its divisors is an integer number (2061058030560).

Almost surely, 2^{31212003222133} is an apocalyptic number.

It is an amenable number.

31212003222133 is a deficient number, since it is larger than the sum of its proper divisors (1764925266827).

31212003222133 is a wasteful number, since it uses less digits than its factorization.

31212003222133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156068.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31212003222133 its reverse (33122230021213), we get a palindrome (64334233243346).

The spelling of 31212003222133 in words is "thirty-one trillion, two hundred twelve billion, three million, two hundred twenty-two thousand, one hundred thirty-three".