22200001957878 has 16 divisors (see below), whose sum is σ = 44400166303680. Its totient is φ = 7399973587976.

The previous prime is 22200001957877. The next prime is 22200001957879. The reversal of 22200001957878 is 87875910000222.

It is an interprime number because it is at equal distance from previous prime (22200001957877) and next prime (22200001957879).

It is a self number, because there is not a number n which added to its sum of digits gives 22200001957878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200001957877) 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, 4951500 + ... + 8301647.

It is an arithmetic number, because the mean of its divisors is an integer number (2775010393980).

Almost surely, 2^{22200001957878} is an apocalyptic number.

22200001957878 is an abundant number, since it is smaller than the sum of its proper divisors (22200164345802).

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

22200001957878 is a wasteful number, since it uses less digits than its factorization.

22200001957878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13532331.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 22200001957878 in words is "twenty-two trillion, two hundred billion, one million, nine hundred fifty-seven thousand, eight hundred seventy-eight".