22051234155 has 16 divisors (see below), whose sum is σ = 35559788544. Its totient is φ = 11668053600.

The previous prime is 22051234141. The next prime is 22051234159. The reversal of 22051234155 is 55143215022.

It is not a de Polignac number, because 22051234155 - 2²⁷ = 21917016427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22051234159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5785821 + ... + 5789630.

It is an arithmetic number, because the mean of its divisors is an integer number (2222486784).

Almost surely, 2^22051234155 is an apocalyptic number.

22051234155 is a deficient number, since it is larger than the sum of its proper divisors (13508554389).

22051234155 is a wasteful number, since it uses less digits than its factorization.

22051234155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11575586.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 22051234155 its reverse (55143215022), we get a palindrome (77194449177).

The spelling of 22051234155 in words is "twenty-two billion, fifty-one million, two hundred thirty-four thousand, one hundred fifty-five".