220966835 has 16 divisors (see below), whose sum is σ = 272160000. Its totient is φ = 172124160.

The previous prime is 220966831. The next prime is 220966841. The reversal of 220966835 is 538669022.

It is not a de Polignac number, because 220966835 - 2² = 220966831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 220966792 and 220966801.

It is not an unprimeable number, because it can be changed into a prime (220966831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176291 + ... + 177539.

It is an arithmetic number, because the mean of its divisors is an integer number (17010000).

Almost surely, 2^220966835 is an apocalyptic number.

220966835 is a deficient number, since it is larger than the sum of its proper divisors (51193165).

220966835 is a wasteful number, since it uses less digits than its factorization.

220966835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 220966835 is about 14864.9532458061. The cubic root of 220966835 is about 604.5641146917.

The spelling of 220966835 in words is "two hundred twenty million, nine hundred sixty-six thousand, eight hundred thirty-five".