2201102120021 has 16 divisors (see below), whose sum is σ = 2580182928000. Its totient is φ = 1876883468544.

The previous prime is 2201102120017. The next prime is 2201102120023. The reversal of 2201102120021 is 1200212011022.

It is not a de Polignac number, because 2201102120021 - 2² = 2201102120017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201102119978 and 2201102120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201102120023) 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, 16558691 + ... + 16691088.

It is an arithmetic number, because the mean of its divisors is an integer number (161261433000).

Almost surely, 2^{2201102120021} is an apocalyptic number.

It is an amenable number.

2201102120021 is a deficient number, since it is larger than the sum of its proper divisors (379080807979).

2201102120021 is an equidigital number, since it uses as much as digits as its factorization.

2201102120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33249993 (or 33249979 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2201102120021 its reverse (1200212011022), we get a palindrome (3401314131043).

The spelling of 2201102120021 in words is "two trillion, two hundred one billion, one hundred two million, one hundred twenty thousand, twenty-one".