220261307 has 16 divisors (see below), whose sum is σ = 259940352. Its totient is φ = 182710080.

The previous prime is 220261303. The next prime is 220261309. The reversal of 220261307 is 703162022.

It is not a de Polignac number, because 220261307 - 2² = 220261303 is a prime.

It is a super-2 number, since 2×220261307² = 97030086722696498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220261303) 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, 33428 + ... + 39470.

It is an arithmetic number, because the mean of its divisors is an integer number (16246272).

Almost surely, 2^220261307 is an apocalyptic number.

220261307 is a deficient number, since it is larger than the sum of its proper divisors (39679045).

220261307 is a wasteful number, since it uses less digits than its factorization.

220261307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6218.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 220261307 is about 14841.2030172759. The cubic root of 220261307 is about 603.9199883415.

The spelling of 220261307 in words is "two hundred twenty million, two hundred sixty-one thousand, three hundred seven".