2121200330310 has 48 divisors (see below), whose sum is σ = 5533085493936. Its totient is φ = 563810894784.

The previous prime is 2121200330281. The next prime is 2121200330351. The reversal of 2121200330310 is 130330021212.

2121200330310 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 20 + 0 + 330 + 310 = 666.

It is a super-2 number, since 2×2121200330310² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38358189 + ... + 38413448.

It is an arithmetic number, because the mean of its divisors is an integer number (115272614457).

Almost surely, 2^{2121200330310} is an apocalyptic number.

2121200330310 is an abundant number, since it is smaller than the sum of its proper divisors (3411885163626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121200330310 is a wasteful number, since it uses less digits than its factorization.

2121200330310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76771957 (or 76771954 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2121200330310 its reverse (130330021212), we get a palindrome (2251530351522).

The spelling of 2121200330310 in words is "two trillion, one hundred twenty-one billion, two hundred million, three hundred thirty thousand, three hundred ten".