11221222202100 has 72 divisors (see below), whose sum is σ = 36074151384320. Its totient is φ = 2992325919840.

The previous prime is 11221222202089. The next prime is 11221222202137. The reversal of 11221222202100 is 120222212211.

It is a happy number.

11221222202100 is a `hidden beast` number, since 11 + 221 + 2 + 2 + 220 + 210 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2078001412 + ... + 2078006811.

Almost surely, 2^{11221222202100} is an apocalyptic number.

11221222202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221222202100 is an abundant number, since it is smaller than the sum of its proper divisors (24852929182220).

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

11221222202100 is a wasteful number, since it uses less digits than its factorization.

11221222202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156008246 (or 4156008233 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11221222202100 its reverse (120222212211), we get a palindrome (11341444414311).

The spelling of 11221222202100 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, one hundred".