196951721022 has 48 divisors (see below), whose sum is σ = 509126904720. Its totient is φ = 56271919536.

The previous prime is 196951720981. The next prime is 196951721023. The reversal of 196951721022 is 220127159691.

196951721022 is a `hidden beast` number, since 1 + 96 + 9 + 517 + 21 + 0 + 22 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196951721023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37214233 + ... + 37219524.

It is an arithmetic number, because the mean of its divisors is an integer number (10606810515).

Almost surely, 2^196951721022 is an apocalyptic number.

196951721022 is an abundant number, since it is smaller than the sum of its proper divisors (312175183698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196951721022 is a wasteful number, since it uses less digits than its factorization.

196951721022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74433782 (or 74433769 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 196951721022 in words is "one hundred ninety-six billion, nine hundred fifty-one million, seven hundred twenty-one thousand, twenty-two".