21775113122 has 8 divisors (see below), whose sum is σ = 37328765376. Its totient is φ = 9332191332.

The previous prime is 21775113089. The next prime is 21775113149. The reversal of 21775113122 is 22131157712.

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

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, 777682598 + ... + 777682625.

It is an arithmetic number, because the mean of its divisors is an integer number (4666095672).

Almost surely, 2^21775113122 is an apocalyptic number.

21775113122 is a deficient number, since it is larger than the sum of its proper divisors (15553652254).

21775113122 is a wasteful number, since it uses less digits than its factorization.

21775113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555365232.

The product of its digits is 5880, while the sum is 32.

The spelling of 21775113122 in words is "twenty-one billion, seven hundred seventy-five million, one hundred thirteen thousand, one hundred twenty-two".