2012111000221 has 64 divisors (see below), whose sum is σ = 2464679301120. Its totient is φ = 1604463759360.

The previous prime is 2012111000209. The next prime is 2012111000239. The reversal of 2012111000221 is 1220001112102.

It is not a de Polignac number, because 2012111000221 - 2⁷ = 2012111000093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012111000261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 870665656 + ... + 870667966.

It is an arithmetic number, because the mean of its divisors is an integer number (38510614080).

Almost surely, 2^{2012111000221} is an apocalyptic number.

It is an amenable number.

2012111000221 is a deficient number, since it is larger than the sum of its proper divisors (452568300899).

2012111000221 is a wasteful number, since it uses less digits than its factorization.

2012111000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2012111000221 its reverse (1220001112102), we get a palindrome (3232112112323).

The spelling of 2012111000221 in words is "two trillion, twelve billion, one hundred eleven million, two hundred twenty-one", and thus it is an aban number.