2201021112109 has 2 divisors, whose sum is σ = 2201021112110. Its totient is φ = 2201021112108.

The previous prime is 2201021112097. The next prime is 2201021112179. The reversal of 2201021112109 is 9012111201022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1406109782025 + 794911330084 = 1185795^2 + 891578^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201021112109 - 2²⁵ = 2200987557677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2201021112109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201021112179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100510556054 + 1100510556055.

It is an arithmetic number, because the mean of its divisors is an integer number (1100510556055).

Almost surely, 2^{2201021112109} is an apocalyptic number.

It is an amenable number.

2201021112109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201021112109 is an equidigital number, since it uses as much as digits as its factorization.

2201021112109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 2201021112109 in words is "two trillion, two hundred one billion, twenty-one million, one hundred twelve thousand, one hundred nine".