31222001132 has 48 divisors (see below), whose sum is σ = 62769530880. Its totient is φ = 13311221952.

The previous prime is 31222001131. The next prime is 31222001147. The reversal of 31222001132 is 23110022213.

It is a super-4 number, since 4×31222001132⁴ (a number of 43 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31222001132.

It is not an unprimeable number, because it can be changed into a prime (31222001131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9146258 + ... + 9149670.

It is an arithmetic number, because the mean of its divisors is an integer number (1307698560).

Almost surely, 2^31222001132 is an apocalyptic number.

It is an amenable number.

31222001132 is an abundant number, since it is smaller than the sum of its proper divisors (31547529748).

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

31222001132 is a wasteful number, since it uses less digits than its factorization.

31222001132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030 (or 5028 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31222001132 its reverse (23110022213), we get a palindrome (54332023345).

The spelling of 31222001132 in words is "thirty-one billion, two hundred twenty-two million, one thousand, one hundred thirty-two".