31133212022 has 32 divisors (see below), whose sum is σ = 54875142144. Its totient is φ = 13099521600.

The previous prime is 31133211997. The next prime is 31133212037. The reversal of 31133212022 is 22021233113.

It is a junction number, because it is equal to n+sod(n) for n = 31133211985 and 31133212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976703 + ... + 1008074.

It is an arithmetic number, because the mean of its divisors is an integer number (1714848192).

Almost surely, 2^31133212022 is an apocalyptic number.

31133212022 is a deficient number, since it is larger than the sum of its proper divisors (23741930122).

31133212022 is a wasteful number, since it uses less digits than its factorization.

31133212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984844.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31133212022 its reverse (22021233113), we get a palindrome (53154445135).

The spelling of 31133212022 in words is "thirty-one billion, one hundred thirty-three million, two hundred twelve thousand, twenty-two".