10537221 has 8 divisors (see below), whose sum is σ = 14123200. Its totient is φ = 6988032.

The previous prime is 10537217. The next prime is 10537273. The reversal of 10537221 is 12273501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10537221 - 2² = 10537217 is a prime.

It is a super-2 number, since 2×10537221² = 222066052805682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10537211) 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, 8521 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (1765400).

Almost surely, 2^10537221 is an apocalyptic number.

It is an amenable number.

10537221 is a deficient number, since it is larger than the sum of its proper divisors (3585979).

10537221 is a wasteful number, since it uses less digits than its factorization.

10537221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18395.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 10537221 is about 3246.1085933776. The cubic root of 10537221 is about 219.2343980174.

The spelling of 10537221 in words is "ten million, five hundred thirty-seven thousand, two hundred twenty-one".