22400380221990 has 32 divisors (see below), whose sum is σ = 55011166315776. Its totient is φ = 5834517638880.

The previous prime is 22400380221971. The next prime is 22400380222019. The reversal of 22400380221990 is 9912208300422.

It is a congruent number.

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, 8682316626 + ... + 8682319205.

It is an arithmetic number, because the mean of its divisors is an integer number (1719098947368).

Almost surely, 2^{22400380221990} is an apocalyptic number.

22400380221990 is an abundant number, since it is smaller than the sum of its proper divisors (32610786093786).

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

22400380221990 is a wasteful number, since it uses less digits than its factorization.

22400380221990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17364635884.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 22400380221990 in words is "twenty-two trillion, four hundred billion, three hundred eighty million, two hundred twenty-one thousand, nine hundred ninety".