39222012 has 24 divisors (see below), whose sum is σ = 91759696. Its totient is φ = 13039488.

The previous prime is 39222011. The next prime is 39222019. The reversal of 39222012 is 21022293.

It is a self number, because there is not a number n which added to its sum of digits gives 39222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39222011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648 + ... + 8880.

Almost surely, 2^39222012 is an apocalyptic number.

It is an amenable number.

39222012 is an abundant number, since it is smaller than the sum of its proper divisors (52537684).

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

39222012 is a wasteful number, since it uses less digits than its factorization.

39222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8637 (or 8635 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 39222012 is about 6262.7479591630. The cubic root of 39222012 is about 339.7634225056.

The spelling of 39222012 in words is "thirty-nine million, two hundred twenty-two thousand, twelve".