1111122102100 has 36 divisors (see below), whose sum is σ = 2412221051548. Its totient is φ = 444248640000.

The previous prime is 1111122102073. The next prime is 1111122102109. The reversal of 1111122102100 is 12012211111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 129821854864 + 981300247236 = 360308^2 + 990606^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111122102109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2279301 + ... + 2723500.

Almost surely, 2^{1111122102100} is an apocalyptic number.

1111122102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111122102100 is an abundant number, since it is smaller than the sum of its proper divisors (1301098949448).

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

1111122102100 is a wasteful number, since it uses less digits than its factorization.

1111122102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005036 (or 5005029 counting only the distinct ones).

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

Adding to 1111122102100 its reverse (12012211111), we get a palindrome (1123134313211).

The spelling of 1111122102100 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, one hundred two thousand, one hundred".