2121201020141 has 4 divisors (see below), whose sum is σ = 2424229737312. Its totient is φ = 1818172302972.

The previous prime is 2121201020023. The next prime is 2121201020143. The reversal of 2121201020141 is 1410201021212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2121201020141 - 2²⁶ = 2121133911277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121201020143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151514358575 + ... + 151514358588.

It is an arithmetic number, because the mean of its divisors is an integer number (606057434328).

Almost surely, 2^{2121201020141} is an apocalyptic number.

It is an amenable number.

2121201020141 is a deficient number, since it is larger than the sum of its proper divisors (303028717171).

2121201020141 is an equidigital number, since it uses as much as digits as its factorization.

2121201020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303028717170.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2121201020141 its reverse (1410201021212), we get a palindrome (3531402041353).

The spelling of 2121201020141 in words is "two trillion, one hundred twenty-one billion, two hundred one million, twenty thousand, one hundred forty-one".