2207161121 has 24 divisors (see below), whose sum is σ = 2539606272. Its totient is φ = 1913155200.

The previous prime is 2207161063. The next prime is 2207161127. The reversal of 2207161121 is 1211617022.

It is a de Polignac number, because none of the positive numbers 2^k-2207161121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2207161127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1020281 + ... + 1022441.

It is an arithmetic number, because the mean of its divisors is an integer number (105816928).

Almost surely, 2^2207161121 is an apocalyptic number.

It is an amenable number.

2207161121 is a deficient number, since it is larger than the sum of its proper divisors (332445151).

2207161121 is a wasteful number, since it uses less digits than its factorization.

2207161121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 2207161121 is about 46980.4333845485. The cubic root of 2207161121 is about 1302.0010840378.

Adding to 2207161121 its reverse (1211617022), we get a palindrome (3418778143).

The spelling of 2207161121 in words is "two billion, two hundred seven million, one hundred sixty-one thousand, one hundred twenty-one".