1112111202100 has 18 divisors (see below), whose sum is σ = 2413281308774. Its totient is φ = 444844480800.

The previous prime is 1112111202091. The next prime is 1112111202109. The reversal of 1112111202100 is 12021112111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1112111202091) and next prime (1112111202109).

It can be written as a sum of positive squares in 3 ways, for example, as 271695307536 + 840415894564 = 521244^2 + 916742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112111202109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5560555911 + ... + 5560556110.

Almost surely, 2^{1112111202100} is an apocalyptic number.

1112111202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112111202100 is an abundant number, since it is smaller than the sum of its proper divisors (1301170106674).

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

1112111202100 is a wasteful number, since it uses less digits than its factorization.

1112111202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121112035 (or 11121112028 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1112111202100 its reverse (12021112111), we get a palindrome (1124132314211).

The spelling of 1112111202100 in words is "one trillion, one hundred twelve billion, one hundred eleven million, two hundred two thousand, one hundred".