1112021000100 has 108 divisors (see below), whose sum is σ = 3500789515860. Its totient is φ = 295243948800.

The previous prime is 1112021000081. The next prime is 1112021000117. The reversal of 1112021000100 is 10001202111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12787776 + 1112008212324 = 3576^2 + 1054518^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 2491671 + ... + 2903870.

Almost surely, 2^{1112021000100} is an apocalyptic number.

1112021000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112021000100 is an abundant number, since it is smaller than the sum of its proper divisors (2388768515760).

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

1112021000100 is a wasteful number, since it uses less digits than its factorization.

1112021000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395790 (or 5395780 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1112021000100 its reverse (10001202111), we get a palindrome (1122022202211).

The spelling of 1112021000100 in words is "one trillion, one hundred twelve billion, twenty-one million, one hundred", and thus it is an aban number.