11121202100 has 18 divisors (see below), whose sum is σ = 24133008774. Its totient is φ = 4448480800.

The previous prime is 11121202067. The next prime is 11121202111. The reversal of 11121202100 is 120212111.

It can be written as a sum of positive squares in 3 ways, for example, as 31427236 + 11089774864 = 5606^2 + 105308^2 .

It is a super-2 number, since 2×11121202100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55605911 + ... + 55606110.

Almost surely, 2^11121202100 is an apocalyptic number.

11121202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121202100 is an abundant number, since it is smaller than the sum of its proper divisors (13011806674).

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

11121202100 is a wasteful number, since it uses less digits than its factorization.

11121202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111212035 (or 111212028 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11121202100 its reverse (120212111), we get a palindrome (11241414211).

The spelling of 11121202100 in words is "eleven billion, one hundred twenty-one million, two hundred two thousand, one hundred".