11222121012100 has 36 divisors (see below), whose sum is σ = 24474374512000. Its totient is φ = 4466291369760.

The previous prime is 11222121012023. The next prime is 11222121012161. The reversal of 11222121012100 is 121012122211.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281942940 + ... + 281982739.

Almost surely, 2^{11222121012100} is an apocalyptic number.

11222121012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222121012100 is an abundant number, since it is smaller than the sum of its proper divisors (13252253499900).

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

11222121012100 is a wasteful number, since it uses less digits than its factorization.

11222121012100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563925892 (or 563925885 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11222121012100 its reverse (121012122211), we get a palindrome (11343133134311).

It can be divided in two parts, 1122212 and 1012100, that added together give a palindrome (2134312).

The spelling of 11222121012100 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, twelve thousand, one hundred".