20988217476922 has 8 divisors (see below), whose sum is σ = 31482848223072. Its totient is φ = 10493934735900.

The previous prime is 20988217476869. The next prime is 20988217476977. The reversal of 20988217476922 is 22967471288902.

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, 86850454 + ... + 87091777.

It is an arithmetic number, because the mean of its divisors is an integer number (3935356027884).

Almost surely, 2^{20988217476922} is an apocalyptic number.

20988217476922 is a deficient number, since it is larger than the sum of its proper divisors (10494630746150).

20988217476922 is a wasteful number, since it uses less digits than its factorization.

20988217476922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174002564.

The product of its (nonzero) digits is 97542144, while the sum is 67.

The spelling of 20988217476922 in words is "twenty trillion, nine hundred eighty-eight billion, two hundred seventeen million, four hundred seventy-six thousand, nine hundred twenty-two".