2120210210121 has 8 divisors (see below), whose sum is σ = 2975733628320. Its totient is φ = 1339080132672.

The previous prime is 2120210210119. The next prime is 2120210210143. The reversal of 2120210210121 is 1210120120212.

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

It is not a de Polignac number, because 2120210210121 - 2¹ = 2120210210119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120210210121.

It is not an unprimeable number, because it can be changed into a prime (2120210210171) 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, 18598335120 + ... + 18598335233.

It is an arithmetic number, because the mean of its divisors is an integer number (371966703540).

Almost surely, 2^{2120210210121} is an apocalyptic number.

It is an amenable number.

2120210210121 is a deficient number, since it is larger than the sum of its proper divisors (855523418199).

2120210210121 is a wasteful number, since it uses less digits than its factorization.

2120210210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37196670375.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2120210210121 its reverse (1210120120212), we get a palindrome (3330330330333).

The spelling of 2120210210121 in words is "two trillion, one hundred twenty billion, two hundred ten million, two hundred ten thousand, one hundred twenty-one".