2010211221221 has 16 divisors (see below), whose sum is σ = 2358730620288. Its totient is φ = 1677218150400.

The previous prime is 2010211221209. The next prime is 2010211221233. The reversal of 2010211221221 is 1221221120102.

It is an interprime number because it is at equal distance from previous prime (2010211221209) and next prime (2010211221233).

It is a cyclic number.

It is not a de Polignac number, because 2010211221221 - 2²⁶ = 2010144112357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2010211221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010211221281) 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, 7778300 + ... + 8032581.

It is an arithmetic number, because the mean of its divisors is an integer number (147420663768).

Almost surely, 2^{2010211221221} is an apocalyptic number.

It is an amenable number.

2010211221221 is a deficient number, since it is larger than the sum of its proper divisors (348519399067).

2010211221221 is a wasteful number, since it uses less digits than its factorization.

2010211221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15811372.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2010211221221 its reverse (1221221120102), we get a palindrome (3231432341323).

The spelling of 2010211221221 in words is "two trillion, ten billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-one".