22224402155 has 16 divisors (see below), whose sum is σ = 27619099200. Its totient is φ = 17147652480.

The previous prime is 22224402143. The next prime is 22224402191. The reversal of 22224402155 is 55120442222.

It is a happy number.

It is not a de Polignac number, because 22224402155 - 2¹⁶ = 22224336619 is a prime.

It is a super-2 number, since 2×22224402155² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 49865 + ... + 216645.

It is an arithmetic number, because the mean of its divisors is an integer number (1726193700).

Almost surely, 2^22224402155 is an apocalyptic number.

22224402155 is a deficient number, since it is larger than the sum of its proper divisors (5394697045).

22224402155 is a wasteful number, since it uses less digits than its factorization.

22224402155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167734.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 22224402155 its reverse (55120442222), we get a palindrome (77344844377).

The spelling of 22224402155 in words is "twenty-two billion, two hundred twenty-four million, four hundred two thousand, one hundred fifty-five".