2002121000120 has 32 divisors (see below), whose sum is σ = 4741865528400. Its totient is φ = 758698483968.

The previous prime is 2002121000093. The next prime is 2002121000137. The reversal of 2002121000120 is 210001212002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317184109 + ... + 1317185628.

Almost surely, 2^{2002121000120} is an apocalyptic number.

2002121000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002121000120 is an abundant number, since it is smaller than the sum of its proper divisors (2739744528280).

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

2002121000120 is a wasteful number, since it uses less digits than its factorization.

2002121000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634369767 (or 2634369763 counting only the distinct ones).

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

Adding to 2002121000120 its reverse (210001212002), we get a palindrome (2212122212122).

The spelling of 2002121000120 in words is "two trillion, two billion, one hundred twenty-one million, one hundred twenty", and thus it is an aban number.