21722137714412 has 48 divisors (see below), whose sum is σ = 38719375833600. Its totient is φ = 10660048501440.

The previous prime is 21722137714357. The next prime is 21722137714429. The reversal of 21722137714412 is 21441773122712.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1788854813 + ... + 1788866955.

It is an arithmetic number, because the mean of its divisors is an integer number (806653663200).

Almost surely, 2^{21722137714412} is an apocalyptic number.

It is an amenable number.

21722137714412 is a deficient number, since it is larger than the sum of its proper divisors (16997238119188).

21722137714412 is a wasteful number, since it uses less digits than its factorization.

21722137714412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23606 (or 23604 counting only the distinct ones).

The product of its digits is 263424, while the sum is 44.

The spelling of 21722137714412 in words is "twenty-one trillion, seven hundred twenty-two billion, one hundred thirty-seven million, seven hundred fourteen thousand, four hundred twelve".