1100120102001 has 8 divisors (see below), whose sum is σ = 1629807558560. Its totient is φ = 733413401316.

The previous prime is 1100120101991. The next prime is 1100120102027. The reversal of 1100120102001 is 1002010210011.

It is a happy number.

It is not a de Polignac number, because 1100120102001 - 2⁹ = 1100120101489 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100120102041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20372594455 + ... + 20372594508.

It is an arithmetic number, because the mean of its divisors is an integer number (203725944820).

Almost surely, 2^{1100120102001} is an apocalyptic number.

It is an amenable number.

1100120102001 is a deficient number, since it is larger than the sum of its proper divisors (529687456559).

1100120102001 is an equidigital number, since it uses as much as digits as its factorization.

1100120102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40745188972 (or 40745188966 counting only the distinct ones).

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

Adding to 1100120102001 its reverse (1002010210011), we get a palindrome (2102130312012).

The spelling of 1100120102001 in words is "one trillion, one hundred billion, one hundred twenty million, one hundred two thousand, one".