2200000001121 has 28 divisors (see below), whose sum is σ = 3552221184148. Its totient is φ = 1353846148704.

The previous prime is 2200000001027. The next prime is 2200000001123. The reversal of 2200000001121 is 1211000000022.

It can be written as a sum of positive squares in 2 ways, for example, as 341383118400 + 1858616882721 = 584280^2 + 1363311^2 .

It is not a de Polignac number, because 2200000001121 - 2⁹ = 2200000000609 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (2200000001123) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 116061010 + ... + 116079963.

It is an arithmetic number, because the mean of its divisors is an integer number (126865042291).

Almost surely, 2^{2200000001121} is an apocalyptic number.

It is an amenable number.

2200000001121 is a deficient number, since it is larger than the sum of its proper divisors (1352221183027).

2200000001121 is an equidigital number, since it uses as much as digits as its factorization.

2200000001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232141004 (or 232140989 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2200000001121 its reverse (1211000000022), we get a palindrome (3411000001143).

The spelling of 2200000001121 in words is "two trillion, two hundred billion, one thousand, one hundred twenty-one".