100202111197 has 4 divisors (see below), whose sum is σ = 100206534780. Its totient is φ = 100197687616.

The previous prime is 100202111173. The next prime is 100202111231. The reversal of 100202111197 is 791111202001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49421291481 + 50780819716 = 222309^2 + 225346^2 .

It is a cyclic number.

It is not a de Polignac number, because 100202111197 - 2¹⁵ = 100202078429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100202111497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2177638 + ... + 2223175.

It is an arithmetic number, because the mean of its divisors is an integer number (25051633695).

Almost surely, 2^100202111197 is an apocalyptic number.

It is an amenable number.

100202111197 is a deficient number, since it is larger than the sum of its proper divisors (4423583).

100202111197 is an equidigital number, since it uses as much as digits as its factorization.

100202111197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423582.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 100202111197 its reverse (791111202001), we get a palindrome (891313313198).

The spelling of 100202111197 in words is "one hundred billion, two hundred two million, one hundred eleven thousand, one hundred ninety-seven".