23220110013545 has 16 divisors (see below), whose sum is σ = 28112064095808. Its totient is φ = 18411155805120.

The previous prime is 23220110013449. The next prime is 23220110013557. The reversal of 23220110013545 is 54531001102232.

It is not a de Polignac number, because 23220110013545 - 2¹⁸ = 23220109751401 is a prime.

It is a super-2 number, since 2×23220110013545² (a number of 28 digits) contains 22 as substring.

It is a Duffinian 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, 21717959 + ... + 22762028.

It is an arithmetic number, because the mean of its divisors is an integer number (1757004005988).

Almost surely, 2^{23220110013545} is an apocalyptic number.

It is an amenable number.

23220110013545 is a deficient number, since it is larger than the sum of its proper divisors (4891954082263).

23220110013545 is a wasteful number, since it uses less digits than its factorization.

23220110013545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44480920.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 23220110013545 its reverse (54531001102232), we get a palindrome (77751111115777).

The spelling of 23220110013545 in words is "twenty-three trillion, two hundred twenty billion, one hundred ten million, thirteen thousand, five hundred forty-five".