21022516196 has 24 divisors (see below), whose sum is σ = 40380128544. Its totient is φ = 9497062080.

The previous prime is 21022516171. The next prime is 21022516201. The reversal of 21022516196 is 69161522012.

It is a happy number.

It is a super-2 number, since 2×21022516196² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458425 + ... + 1472768.

It is an arithmetic number, because the mean of its divisors is an integer number (1682505356).

Almost surely, 2^21022516196 is an apocalyptic number.

It is an amenable number.

21022516196 is a deficient number, since it is larger than the sum of its proper divisors (19357612348).

21022516196 is a wasteful number, since it uses less digits than its factorization.

21022516196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931371 (or 2931369 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 21022516196 in words is "twenty-one billion, twenty-two million, five hundred sixteen thousand, one hundred ninety-six".