20948970022 has 4 divisors (see below), whose sum is σ = 31423455036. Its totient is φ = 10474485010.

The previous prime is 20948969989. The next prime is 20948970041. The reversal of 20948970022 is 22007984902.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5237242504 + ... + 5237242507.

It is an arithmetic number, because the mean of its divisors is an integer number (7855863759).

Almost surely, 2^20948970022 is an apocalyptic number.

20948970022 is a deficient number, since it is larger than the sum of its proper divisors (10474485014).

20948970022 is a wasteful number, since it uses less digits than its factorization.

20948970022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10474485013.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 20948970022 in words is "twenty billion, nine hundred forty-eight million, nine hundred seventy thousand, twenty-two".