2121002012000 has 48 divisors (see below), whose sum is σ = 5211301953312. Its totient is φ = 848400803200.

The previous prime is 2121002011981. The next prime is 2121002012023. The reversal of 2121002012000 is 2102001212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265121252 + ... + 265129251.

It is an arithmetic number, because the mean of its divisors is an integer number (108568790694).

Almost surely, 2^{2121002012000} is an apocalyptic number.

2121002012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121002012000 is an abundant number, since it is smaller than the sum of its proper divisors (3090299941312).

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

2121002012000 is an equidigital number, since it uses as much as digits as its factorization.

2121002012000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530250528 (or 530250510 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2121002012000 its reverse (2102001212), we get a palindrome (2123104013212).

The spelling of 2121002012000 in words is "two trillion, one hundred twenty-one billion, two million, twelve thousand".