10111220197 has 16 divisors (see below), whose sum is σ = 10983329280. Its totient is φ = 9252734400.

The previous prime is 10111220143. The next prime is 10111220219. The reversal of 10111220197 is 79102211101.

It is not a de Polignac number, because 10111220197 - 2¹¹ = 10111218149 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 (10111220117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2090572 + ... + 2095402.

It is an arithmetic number, because the mean of its divisors is an integer number (686458080).

Almost surely, 2^10111220197 is an apocalyptic number.

It is an amenable number.

10111220197 is a deficient number, since it is larger than the sum of its proper divisors (872109083).

10111220197 is a wasteful number, since it uses less digits than its factorization.

10111220197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204.

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

Adding to 10111220197 its reverse (79102211101), we get a palindrome (89213431298).

The spelling of 10111220197 in words is "ten billion, one hundred eleven million, two hundred twenty thousand, one hundred ninety-seven".