2132121 has 8 divisors (see below), whose sum is σ = 2863840. Its totient is φ = 1410912.

The previous prime is 2132113. The next prime is 2132129. The reversal of 2132121 is 1212312.

It is an interprime number because it is at equal distance from previous prime (2132113) and next prime (2132129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2132121 - 2³ = 2132113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2132097 and 2132106.

It is not an unprimeable number, because it can be changed into a prime (2132129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2140 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (357980).

2^2132121 is an apocalyptic number.

It is an amenable number.

2132121 is a deficient number, since it is larger than the sum of its proper divisors (731719).

2132121 is a wasteful number, since it uses less digits than its factorization.

2132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255.

The product of its digits is 24, while the sum is 12.

The square root of 2132121 is about 1460.1784137563. The cubic root of 2132121 is about 128.7075280150.

Adding to 2132121 its reverse (1212312), we get a palindrome (3344433).

It can be divided in two parts, 21 and 32121, that multiplied together give a triangular number (674541 = T₁₁₆₁).

The spelling of 2132121 in words is "two million, one hundred thirty-two thousand, one hundred twenty-one".