37222081 has 12 divisors (see below), whose sum is σ = 40509612. Its totient is φ = 34185216.

The previous prime is 37222079. The next prime is 37222117. The reversal of 37222081 is 18022273.

It can be written as a sum of positive squares in 6 ways, for example, as 1401856 + 35820225 = 1184^2 + 5985^2 .

It is not a de Polignac number, because 37222081 - 2¹ = 37222079 is a prime.

It is a super-2 number, since 2×37222081² = 2770966627941122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (37222021) 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, 43005 + ... + 43861.

It is an arithmetic number, because the mean of its divisors is an integer number (3375801).

Almost surely, 2^37222081 is an apocalyptic number.

It is an amenable number.

37222081 is a deficient number, since it is larger than the sum of its proper divisors (3287531).

37222081 is a wasteful number, since it uses less digits than its factorization.

37222081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 37222081 is about 6100.9901655387. The cubic root of 37222081 is about 333.8875432656.

The spelling of 37222081 in words is "thirty-seven million, two hundred twenty-two thousand, eighty-one".