2011202112221 has 8 divisors (see below), whose sum is σ = 2076108537600. Its totient is φ = 1946297495520.

The previous prime is 2011202112209. The next prime is 2011202112233. The reversal of 2011202112221 is 1222112021102.

It is an interprime number because it is at equal distance from previous prime (2011202112209) and next prime (2011202112233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011202112221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011202112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011202112721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2022770 + ... + 2848508.

It is an arithmetic number, because the mean of its divisors is an integer number (259513567200).

Almost surely, 2^{2011202112221} is an apocalyptic number.

It is an amenable number.

2011202112221 is a deficient number, since it is larger than the sum of its proper divisors (64906425379).

2011202112221 is an equidigital number, since it uses as much as digits as its factorization.

2011202112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904339.

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

Adding to 2011202112221 its reverse (1222112021102), we get a palindrome (3233314133323).

The spelling of 2011202112221 in words is "two trillion, eleven billion, two hundred two million, one hundred twelve thousand, two hundred twenty-one".