11111212202 has 16 divisors (see below), whose sum is σ = 16873115400. Its totient is φ = 5487110400.

The previous prime is 11111212201. The next prime is 11111212213. The reversal of 11111212202 is 20221211111.

It can be written as a sum of positive squares in 4 ways, for example, as 10243261681 + 867950521 = 101209^2 + 29461^2 .

It is not an unprimeable number, because it can be changed into a prime (11111212201) 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, 15374 + ... + 149862.

Almost surely, 2^11111212202 is an apocalyptic number.

11111212202 is a deficient number, since it is larger than the sum of its proper divisors (5761903198).

11111212202 is a wasteful number, since it uses less digits than its factorization.

11111212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135001.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11111212202 its reverse (20221211111), we get a palindrome (31332423313).

The spelling of 11111212202 in words is "eleven billion, one hundred eleven million, two hundred twelve thousand, two hundred two".