23222755218 has 16 divisors (see below), whose sum is σ = 50018242176. Its totient is φ = 7145463120.

The previous prime is 23222755211. The next prime is 23222755273. The reversal of 23222755218 is 81255722232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (23222755211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148863738 + ... + 148863893.

It is an arithmetic number, because the mean of its divisors is an integer number (3126140136).

Almost surely, 2^23222755218 is an apocalyptic number.

23222755218 is an abundant number, since it is smaller than the sum of its proper divisors (26795486958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23222755218 is a wasteful number, since it uses less digits than its factorization.

23222755218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297727649.

The product of its digits is 134400, while the sum is 39.

The spelling of 23222755218 in words is "twenty-three billion, two hundred twenty-two million, seven hundred fifty-five thousand, two hundred eighteen".