11222121203100 has 108 divisors (see below), whose sum is σ = 35205679192320. Its totient is φ = 2989965408000.

The previous prime is 11222121203099. The next prime is 11222121203119. The reversal of 11222121203100 is 130212122211.

11222121203100 is a `hidden beast` number, since 1 + 1 + 22 + 212 + 120 + 310 + 0 = 666.

It is a super-2 number, since 2×11222121203100² (a number of 27 digits) contains 22 as substring.

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 polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4380705 + ... + 6452504.

It is an arithmetic number, because the mean of its divisors is an integer number (325978511040).

Almost surely, 2^{11222121203100} is an apocalyptic number.

11222121203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222121203100 is an abundant number, since it is smaller than the sum of its proper divisors (23983557989220).

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

11222121203100 is a wasteful number, since it uses less digits than its factorization.

11222121203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834380 (or 10834370 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11222121203100 its reverse (130212122211), we get a palindrome (11352333325311).

The spelling of 11222121203100 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, two hundred three thousand, one hundred".