1102001200021 has 16 divisors (see below), whose sum is σ = 1184814489600. Its totient is φ = 1021674197808.

The previous prime is 1102001199979. The next prime is 1102001200033. The reversal of 1102001200021 is 1200021002011.

It is a cyclic number.

It is not a de Polignac number, because 1102001200021 - 2¹³ = 1102001191829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102001199980 and 1102001200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102001200061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8529220 + ... + 8657458.

It is an arithmetic number, because the mean of its divisors is an integer number (74050905600).

Almost surely, 2^{1102001200021} is an apocalyptic number.

It is an amenable number.

1102001200021 is a deficient number, since it is larger than the sum of its proper divisors (82813289579).

1102001200021 is a wasteful number, since it uses less digits than its factorization.

1102001200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137928.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1102001200021 its reverse (1200021002011), we get a palindrome (2302022202032).

The spelling of 1102001200021 in words is "one trillion, one hundred two billion, one million, two hundred thousand, twenty-one".