23220051 has 8 divisors (see below), whose sum is σ = 30985104. Its totient is φ = 15467520.

The previous prime is 23220049. The next prime is 23220073. The reversal of 23220051 is 15002232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23220051 - 2¹ = 23220049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23220051.

It is not an unprimeable number, because it can be changed into a prime (23220091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2811 + ... + 7371.

It is an arithmetic number, because the mean of its divisors is an integer number (3873138).

Almost surely, 2^23220051 is an apocalyptic number.

23220051 is a deficient number, since it is larger than the sum of its proper divisors (7765053).

23220051 is a wasteful number, since it uses less digits than its factorization.

23220051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 23220051 is about 4818.7188131287. The cubic root of 23220051 is about 285.2907712607.

Adding to 23220051 its reverse (15002232), we get a palindrome (38222283).

The spelling of 23220051 in words is "twenty-three million, two hundred twenty thousand, fifty-one".