2121230300120 has 16 divisors (see below), whose sum is σ = 4772768175360. Its totient is φ = 848492120032.

The previous prime is 2121230300117. The next prime is 2121230300129. The reversal of 2121230300120 is 210030321212.

It is a super-2 number, since 2×2121230300120² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121230300129) 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, 26515378712 + ... + 26515378791.

It is an arithmetic number, because the mean of its divisors is an integer number (298298010960).

Almost surely, 2^{2121230300120} is an apocalyptic number.

2121230300120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121230300120 is an abundant number, since it is smaller than the sum of its proper divisors (2651537875240).

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

2121230300120 is a wasteful number, since it uses less digits than its factorization.

2121230300120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53030757514 (or 53030757510 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2121230300120 its reverse (210030321212), we get a palindrome (2331260621332).

The spelling of 2121230300120 in words is "two trillion, one hundred twenty-one billion, two hundred thirty million, three hundred thousand, one hundred twenty".