111212100197 has 8 divisors (see below), whose sum is σ = 121554271200. Its totient is φ = 100908592560.

The previous prime is 111212100179. The next prime is 111212100217. The reversal of 111212100197 is 791001212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111212100197 - 2⁸ = 111212099941 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 (111212100107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9659822 + ... + 9671327.

It is an arithmetic number, because the mean of its divisors is an integer number (15194283900).

Almost surely, 2^111212100197 is an apocalyptic number.

It is an amenable number.

111212100197 is a deficient number, since it is larger than the sum of its proper divisors (10342171003).

111212100197 is a wasteful number, since it uses less digits than its factorization.

111212100197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19331683.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 111212100197 in words is "one hundred eleven billion, two hundred twelve million, one hundred thousand, one hundred ninety-seven".