2012000101221 has 16 divisors (see below), whose sum is σ = 2926655930880. Its totient is φ = 1219348030320.

The previous prime is 2012000101217. The next prime is 2012000101291. The reversal of 2012000101221 is 1221010002102.

It is not a de Polignac number, because 2012000101221 - 2² = 2012000101217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012000101197 and 2012000101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012000101291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250155 + ... + 2021528.

It is an arithmetic number, because the mean of its divisors is an integer number (182915995680).

Almost surely, 2^{2012000101221} is an apocalyptic number.

It is an amenable number.

2012000101221 is a deficient number, since it is larger than the sum of its proper divisors (914655829659).

2012000101221 is a wasteful number, since it uses less digits than its factorization.

2012000101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298536.

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

Adding to 2012000101221 its reverse (1221010002102), we get a palindrome (3233010103323).

The spelling of 2012000101221 in words is "two trillion, twelve billion, one hundred one thousand, two hundred twenty-one".