2120300300121 has 48 divisors (see below), whose sum is σ = 2934430746624. Its totient is φ = 1361070599616.

The previous prime is 2120300300113. The next prime is 2120300300123. The reversal of 2120300300121 is 1210030030212.

It is not a de Polignac number, because 2120300300121 - 2³ = 2120300300113 is a prime.

It is a super-2 number, since 2×2120300300121² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120300300121.

It is not an unprimeable number, because it can be changed into a prime (2120300300123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 357974466 + ... + 357980388.

It is an arithmetic number, because the mean of its divisors is an integer number (61133973888).

Almost surely, 2^{2120300300121} is an apocalyptic number.

It is an amenable number.

2120300300121 is a deficient number, since it is larger than the sum of its proper divisors (814130446503).

2120300300121 is a wasteful number, since it uses less digits than its factorization.

2120300300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6390 (or 6233 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2120300300121 its reverse (1210030030212), we get a palindrome (3330330330333).

The spelling of 2120300300121 in words is "two trillion, one hundred twenty billion, three hundred million, three hundred thousand, one hundred twenty-one".