220822497 has 32 divisors (see below), whose sum is σ = 381849600. Its totient is φ = 123494544.

The previous prime is 220822487. The next prime is 220822507. The reversal of 220822497 is 794228022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220822487) and next prime (220822507).

It is not a de Polignac number, because 220822497 - 2¹⁰ = 220821473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220822417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3547 + ... + 21312.

It is an arithmetic number, because the mean of its divisors is an integer number (11932800).

Almost surely, 2^220822497 is an apocalyptic number.

220822497 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

220822497 is a deficient number, since it is larger than the sum of its proper divisors (161027103).

220822497 is a wasteful number, since it uses less digits than its factorization.

220822497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24922 (or 24916 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 220822497 is about 14860.0974761271. The cubic root of 220822497 is about 604.4324500127.

The spelling of 220822497 in words is "two hundred twenty million, eight hundred twenty-two thousand, four hundred ninety-seven".