2121232141 has 8 divisors (see below), whose sum is σ = 2451504960. Its totient is φ = 1797769248.

The previous prime is 2121232051. The next prime is 2121232177. The reversal of 2121232141 is 1412321212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121232141 - 2¹⁵ = 2121199373 is a prime.

It is a super-2 number, since 2×2121232141² = 8999251592022887762, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121232241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701811 + ... + 1703056.

It is an arithmetic number, because the mean of its divisors is an integer number (306438120).

Almost surely, 2^2121232141 is an apocalyptic number.

It is an amenable number.

2121232141 is a deficient number, since it is larger than the sum of its proper divisors (330272819).

2121232141 is an equidigital number, since it uses as much as digits as its factorization.

2121232141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404963.

The product of its digits is 192, while the sum is 19.

The square root of 2121232141 is about 46056.8359855516. The cubic root of 2121232141 is about 1284.8804848799.

Adding to 2121232141 its reverse (1412321212), we get a palindrome (3533553353).

The spelling of 2121232141 in words is "two billion, one hundred twenty-one million, two hundred thirty-two thousand, one hundred forty-one".