2113322121 has 12 divisors (see below), whose sum is σ = 3104315760. Its totient is φ = 1385001720.

The previous prime is 2113322119. The next prime is 2113322137. The reversal of 2113322121 is 1212233112.

2113322121 is a `hidden beast` number, since 211 + 332 + 2 + 121 = 666.

It is not a de Polignac number, because 2113322121 - 2¹ = 2113322119 is a prime.

It is a super-2 number, since 2×2113322121² = 8932260774215877282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2113322094 and 2113322103.

It is not an unprimeable number, because it can be changed into a prime (2113322021) 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, 1989415 + ... + 1990476.

It is an arithmetic number, because the mean of its divisors is an integer number (258692980).

Almost surely, 2^2113322121 is an apocalyptic number.

It is an amenable number.

2113322121 is a deficient number, since it is larger than the sum of its proper divisors (990993639).

2113322121 is a wasteful number, since it uses less digits than its factorization.

2113322121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979956 (or 3979953 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2113322121 is about 45970.8834046073. The cubic root of 2113322121 is about 1283.2814001735.

Adding to 2113322121 its reverse (1212233112), we get a palindrome (3325555233).

The spelling of 2113322121 in words is "two billion, one hundred thirteen million, three hundred twenty-two thousand, one hundred twenty-one".