21152542226104 has 16 divisors (see below), whose sum is σ = 39661075021320. Its totient is φ = 10576255553760.

The previous prime is 21152542225933. The next prime is 21152542226161. The reversal of 21152542226104 is 40162224525112.

It is a super-2 number, since 2×21152542226104² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5516839 + ... + 8528809.

Almost surely, 2^{21152542226104} is an apocalyptic number.

It is an amenable number.

21152542226104 is a deficient number, since it is larger than the sum of its proper divisors (18508532795216).

21152542226104 is a wasteful number, since it uses less digits than its factorization.

21152542226104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889830 (or 3889826 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 21152542226104 in words is "twenty-one trillion, one hundred fifty-two billion, five hundred forty-two million, two hundred twenty-six thousand, one hundred four".