2021000121012 has 12 divisors (see below), whose sum is σ = 4715666949056. Its totient is φ = 673666707000.

The previous prime is 2021000120987. The next prime is 2021000121031. The reversal of 2021000121012 is 2101210001202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 168416676751 = 2021000121012 / (2 + 0 + 2 + 1 + 0 + 0 + 0 + 1 + 2 + 1 + 0 + 1 + 2).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 84208338364 + ... + 84208338387.

Almost surely, 2^{2021000121012} is an apocalyptic number.

It is an amenable number.

2021000121012 is an abundant number, since it is smaller than the sum of its proper divisors (2694666828044).

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

2021000121012 is a wasteful number, since it uses less digits than its factorization.

2021000121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168416676758 (or 168416676756 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021000121012 its reverse (2101210001202), we get a palindrome (4122210122214).

The spelling of 2021000121012 in words is "two trillion, twenty-one billion, one hundred twenty-one thousand, twelve".