2121300122000 has 40 divisors (see below), whose sum is σ = 5129303699832. Its totient is φ = 848520048000.

The previous prime is 2121300121961. The next prime is 2121300122021. The reversal of 2121300122000 is 2210031212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60766194064 + 2060533927936 = 246508^2 + 1435456^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530323031 + ... + 530327030.

Almost surely, 2^{2121300122000} is an apocalyptic number.

2121300122000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121300122000 is an abundant number, since it is smaller than the sum of its proper divisors (3008003577832).

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

2121300122000 is a wasteful number, since it uses less digits than its factorization.

2121300122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060650084 (or 1060650068 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2121300122000 its reverse (2210031212), we get a palindrome (2123510153212).

The spelling of 2121300122000 in words is "two trillion, one hundred twenty-one billion, three hundred million, one hundred twenty-two thousand".