23220271 has 16 divisors (see below), whose sum is σ = 25896960. Its totient is φ = 20734560.

The previous prime is 23220259. The next prime is 23220277. The reversal of 23220271 is 17202232.

It is a cyclic number.

It is not a de Polignac number, because 23220271 - 2²¹ = 21123119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20116 + ... + 21238.

It is an arithmetic number, because the mean of its divisors is an integer number (1618560).

Almost surely, 2^23220271 is an apocalyptic number.

23220271 is a deficient number, since it is larger than the sum of its proper divisors (2676689).

23220271 is a wasteful number, since it uses less digits than its factorization.

23220271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 23220271 is about 4818.7416407191. The cubic root of 23220271 is about 285.2916722603.

It can be divided in two parts, 232 and 20271, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 23220271 in words is "twenty-three million, two hundred twenty thousand, two hundred seventy-one".