2162432121 has 12 divisors (see below), whose sum is σ = 2901823632. Its totient is φ = 1432390128.

The previous prime is 2162432093. The next prime is 2162432131. The reversal of 2162432121 is 1212342612.

It is not a de Polignac number, because 2162432121 - 2⁷ = 2162431993 is a prime.

It is a super-2 number, since 2×2162432121² = 9352225355865117282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2162432091 and 2162432100.

It is not an unprimeable number, because it can be changed into a prime (2162432131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59326 + ... + 88568.

It is an arithmetic number, because the mean of its divisors is an integer number (241818636).

Almost surely, 2^2162432121 is an apocalyptic number.

It is an amenable number.

2162432121 is a deficient number, since it is larger than the sum of its proper divisors (739391511).

2162432121 is an equidigital number, since it uses as much as digits as its factorization.

2162432121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29560 (or 29403 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 2162432121 is about 46501.9582490888. The cubic root of 2162432121 is about 1293.1458029474.

Adding to 2162432121 its reverse (1212342612), we get a palindrome (3374774733).

The spelling of 2162432121 in words is "two billion, one hundred sixty-two million, four hundred thirty-two thousand, one hundred twenty-one".