2012020002121 has 16 divisors (see below), whose sum is σ = 2134595662848. Its totient is φ = 1892389118400.

The previous prime is 2012020002079. The next prime is 2012020002143. The reversal of 2012020002121 is 1212000202102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2012020002121 - 2⁷ = 2012020001993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012020003121) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4216891 + ... + 4669711.

It is an arithmetic number, because the mean of its divisors is an integer number (133412228928).

Almost surely, 2^{2012020002121} is an apocalyptic number.

It is an amenable number.

2012020002121 is a deficient number, since it is larger than the sum of its proper divisors (122575660727).

2012020002121 is a wasteful number, since it uses less digits than its factorization.

2012020002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456072.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2012020002121 its reverse (1212000202102), we get a palindrome (3224020204223).

The spelling of 2012020002121 in words is "two trillion, twelve billion, twenty million, two thousand, one hundred twenty-one".