1121000100102 has 16 divisors (see below), whose sum is σ = 2491111333680. Its totient is φ = 373666700016.

The previous prime is 1121000100089. The next prime is 1121000100161. The reversal of 1121000100102 is 2010010001211.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10379630503 + ... + 10379630610.

It is an arithmetic number, because the mean of its divisors is an integer number (155694458355).

Almost surely, 2^{1121000100102} is an apocalyptic number.

1121000100102 is an abundant number, since it is smaller than the sum of its proper divisors (1370111233578).

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

1121000100102 is a wasteful number, since it uses less digits than its factorization.

1121000100102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20759261124 (or 20759261118 counting only the distinct ones).

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

Adding to 1121000100102 its reverse (2010010001211), we get a palindrome (3131010101313).

The spelling of 1121000100102 in words is "one trillion, one hundred twenty-one billion, one hundred thousand, one hundred two".