22151157800 has 24 divisors (see below), whose sum is σ = 51501442350. Its totient is φ = 8860463040.

The previous prime is 22151157799. The next prime is 22151157823. The reversal of 22151157800 is 875115122.

It can be written as a sum of positive squares in 3 ways, for example, as 17583290404 + 4567867396 = 132602^2 + 67586^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55377695 + ... + 55378094.

Almost surely, 2^22151157800 is an apocalyptic number.

22151157800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22151157800 is an abundant number, since it is smaller than the sum of its proper divisors (29350284550).

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

22151157800 is a wasteful number, since it uses less digits than its factorization.

22151157800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110755805 (or 110755796 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

The spelling of 22151157800 in words is "twenty-two billion, one hundred fifty-one million, one hundred fifty-seven thousand, eight hundred".