2121012301120 has 28 divisors (see below), whose sum is σ = 5050660542804. Its totient is φ = 848404920320.

The previous prime is 2121012301103. The next prime is 2121012301127. The reversal of 2121012301120 is 211032101212.

It can be written as a sum of positive squares in 2 ways, for example, as 240515699776 + 1880496601344 = 490424^2 + 1371312^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 2121012301094 and 2121012301103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121012301127) 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, 3314081401 + ... + 3314082040.

Almost surely, 2^{2121012301120} is an apocalyptic number.

2121012301120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121012301120 is an abundant number, since it is smaller than the sum of its proper divisors (2929648241684).

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

2121012301120 is an equidigital number, since it uses as much as digits as its factorization.

2121012301120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628163458 (or 6628163448 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2121012301120 its reverse (211032101212), we get a palindrome (2332044402332).

The spelling of 2121012301120 in words is "two trillion, one hundred twenty-one billion, twelve million, three hundred one thousand, one hundred twenty".