23221401451055 has 16 divisors (see below), whose sum is σ = 28521946088064. Its totient is φ = 18139860846240.

The previous prime is 23221401451049. The next prime is 23221401451069. The reversal of 23221401451055 is 55015410412232.

It is not a de Polignac number, because 23221401451055 - 2²² = 23221397256751 is a prime.

It is a super-2 number, since 2×23221401451055² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14830961 + ... + 16321770.

It is an arithmetic number, because the mean of its divisors is an integer number (1782621630504).

Almost surely, 2^{23221401451055} is an apocalyptic number.

23221401451055 is a deficient number, since it is larger than the sum of its proper divisors (5300544637009).

23221401451055 is a wasteful number, since it uses less digits than its factorization.

23221401451055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31156246.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 23221401451055 its reverse (55015410412232), we get a palindrome (78236811863287).

The spelling of 23221401451055 in words is "twenty-three trillion, two hundred twenty-one billion, four hundred one million, four hundred fifty-one thousand, fifty-five".