11121210020100 has 36 divisors (see below), whose sum is σ = 32177367659024. Its totient is φ = 2965656005280.

The previous prime is 11121210020029. The next prime is 11121210020117. The reversal of 11121210020100 is 102001212111.

It is a super-2 number, since 2×11121210020100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 18535349734 + ... + 18535350333.

Almost surely, 2^{11121210020100} is an apocalyptic number.

11121210020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121210020100 is an abundant number, since it is smaller than the sum of its proper divisors (21056157638924).

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

11121210020100 is a wasteful number, since it uses less digits than its factorization.

11121210020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37070700084 (or 37070700077 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11121210020100 its reverse (102001212111), we get a palindrome (11223211232211).

The spelling of 11121210020100 in words is "eleven trillion, one hundred twenty-one billion, two hundred ten million, twenty thousand, one hundred".