20822357912 has 8 divisors (see below), whose sum is σ = 39041921100. Its totient is φ = 10411178952.

The previous prime is 20822357903. The next prime is 20822358019. The reversal of 20822357912 is 21975322802.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20822357912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301397362 + ... + 1301397377.

Almost surely, 2^20822357912 is an apocalyptic number.

It is an amenable number.

20822357912 is a deficient number, since it is larger than the sum of its proper divisors (18219563188).

20822357912 is a wasteful number, since it uses less digits than its factorization.

20822357912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602794745 (or 2602794741 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 20822357912 in words is "twenty billion, eight hundred twenty-two million, three hundred fifty-seven thousand, nine hundred twelve".