11111202202212 has 72 divisors (see below), whose sum is σ = 32242970579456. Its totient is φ = 3160393179264.

The previous prime is 11111202202187. The next prime is 11111202202259. The reversal of 11111202202212 is 21220220211111.

11111202202212 is a `hidden beast` number, since 1 + 111 + 120 + 220 + 2 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98804953 + ... + 98917344.

Almost surely, 2^{11111202202212} is an apocalyptic number.

11111202202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11111202202212 is an abundant number, since it is smaller than the sum of its proper divisors (21131768377244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11111202202212 is a wasteful number, since it uses less digits than its factorization.

11111202202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197722537 (or 197722532 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11111202202212 its reverse (21220220211111), we get a palindrome (32331422413323).

The spelling of 11111202202212 in words is "eleven trillion, one hundred eleven billion, two hundred two million, two hundred two thousand, two hundred twelve".