2012100021201 has 4 divisors (see below), whose sum is σ = 2682800028272. Its totient is φ = 1341400014132.

The previous prime is 2012100021187. The next prime is 2012100021221. The reversal of 2012100021201 is 1021200012102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2012100021201 - 2⁶ = 2012100021137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012100021221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335350003531 + ... + 335350003536.

It is an arithmetic number, because the mean of its divisors is an integer number (670700007068).

Almost surely, 2^{2012100021201} is an apocalyptic number.

It is an amenable number.

2012100021201 is a deficient number, since it is larger than the sum of its proper divisors (670700007071).

2012100021201 is an equidigital number, since it uses as much as digits as its factorization.

2012100021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670700007070.

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

Adding to 2012100021201 its reverse (1021200012102), we get a palindrome (3033300033303).

Subtracting from 2012100021201 its reverse (1021200012102), we obtain a palindrome (990900009099).

The spelling of 2012100021201 in words is "two trillion, twelve billion, one hundred million, twenty-one thousand, two hundred one".