222196491 has 24 divisors (see below), whose sum is σ = 365354496. Its totient is φ = 128808240.

The previous prime is 222196487. The next prime is 222196493. The reversal of 222196491 is 194691222.

222196491 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 9 + 649 + 1 = 666.

It is not a de Polignac number, because 222196491 - 2² = 222196487 is a prime.

It is a super-2 number, since 2×222196491² = 98742561225426162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222196493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46515 + ... + 51068.

It is an arithmetic number, because the mean of its divisors is an integer number (15223104).

Almost surely, 2^222196491 is an apocalyptic number.

222196491 is a deficient number, since it is larger than the sum of its proper divisors (143158005).

222196491 is a wasteful number, since it uses less digits than its factorization.

222196491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97623 (or 97620 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 222196491 is about 14906.2567735834. The cubic root of 222196491 is about 605.6834850081.

The spelling of 222196491 in words is "two hundred twenty-two million, one hundred ninety-six thousand, four hundred ninety-one".