11112111202 has 32 divisors (see below), whose sum is σ = 17824377600. Its totient is φ = 5180102928.

The previous prime is 11112111191. The next prime is 11112111209. The reversal of 11112111202 is 20211121111.

It is a happy number.

It is a super-2 number, since 2×11112111202² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11112111209) 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, 5098549 + ... + 5100727.

It is an arithmetic number, because the mean of its divisors is an integer number (557011800).

Almost surely, 2^11112111202 is an apocalyptic number.

11112111202 is a deficient number, since it is larger than the sum of its proper divisors (6712266398).

11112111202 is a wasteful number, since it uses less digits than its factorization.

11112111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11112111202 its reverse (20211121111), we get a palindrome (31323232313).

Subtracting 11112111202 from its reverse (20211121111), we obtain a palindrome (9099009909).

The spelling of 11112111202 in words is "eleven billion, one hundred twelve million, one hundred eleven thousand, two hundred two".