196722240100 has 72 divisors (see below), whose sum is σ = 438604575080. Its totient is φ = 76530769920.

The previous prime is 196722240089. The next prime is 196722240191. The reversal of 196722240100 is 1042227691.

It can be written as a sum of positive squares in 12 ways, for example, as 6927424 + 196715312676 = 2632^2 + 443526^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10339396 + ... + 10358404.

Almost surely, 2^196722240100 is an apocalyptic number.

196722240100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196722240100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219302287540).

196722240100 is an abundant number, since it is smaller than the sum of its proper divisors (241882334980).

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

196722240100 is a wasteful number, since it uses less digits than its factorization.

196722240100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21857 (or 21850 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 196722240100 its reverse (1042227691), we get a palindrome (197764467791).

The spelling of 196722240100 in words is "one hundred ninety-six billion, seven hundred twenty-two million, two hundred forty thousand, one hundred".