22151051051 has 4 divisors (see below), whose sum is σ = 23454054072. Its totient is φ = 20848048032.

The previous prime is 22151051033. The next prime is 22151051057. The reversal of 22151051051 is 15015015122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22151051051 is a prime.

It is a Duffinian number.

22151051051 is a modest number, since divided by 51051 gives 22151 as remainder.

It is not an unprimeable number, because it can be changed into a prime (22151051057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651501485 + ... + 651501518.

It is an arithmetic number, because the mean of its divisors is an integer number (5863513518).

Almost surely, 2^22151051051 is an apocalyptic number.

22151051051 is a deficient number, since it is larger than the sum of its proper divisors (1303003021).

22151051051 is a wasteful number, since it uses less digits than its factorization.

22151051051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303003020.

The product of its (nonzero) digits is 500, while the sum is 23.

Adding to 22151051051 its reverse (15015015122), we get a palindrome (37166066173).

The spelling of 22151051051 in words is "twenty-two billion, one hundred fifty-one million, fifty-one thousand, fifty-one".