21944288886622 has 8 divisors (see below), whose sum is σ = 32916594948696. Its totient is φ = 10972090570392.

The previous prime is 21944288886617. The next prime is 21944288886623. The reversal of 21944288886622 is 22668888244912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21944288886623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26425353 + ... + 27243124.

It is an arithmetic number, because the mean of its divisors is an integer number (4114574368587).

Almost surely, 2^{21944288886622} is an apocalyptic number.

21944288886622 is a deficient number, since it is larger than the sum of its proper divisors (10972306062074).

21944288886622 is a wasteful number, since it uses less digits than its factorization.

21944288886622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53872922.

The product of its digits is 339738624, while the sum is 70.

The spelling of 21944288886622 in words is "twenty-one trillion, nine hundred forty-four billion, two hundred eighty-eight million, eight hundred eighty-six thousand, six hundred twenty-two".