2120010101221 has 8 divisors (see below), whose sum is σ = 2229603231744. Its totient is φ = 2011868535600.

The previous prime is 2120010101219. The next prime is 2120010101233. The reversal of 2120010101221 is 1221010100212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120010101221 - 2¹ = 2120010101219 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 (2120010101821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362888230 + ... + 362894071.

It is an arithmetic number, because the mean of its divisors is an integer number (278700403968).

Almost surely, 2^{2120010101221} is an apocalyptic number.

It is an amenable number.

2120010101221 is a deficient number, since it is larger than the sum of its proper divisors (109593130523).

2120010101221 is a wasteful number, since it uses less digits than its factorization.

2120010101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725782451.

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

Adding to 2120010101221 its reverse (1221010100212), we get a palindrome (3341020201433).

The spelling of 2120010101221 in words is "two trillion, one hundred twenty billion, ten million, one hundred one thousand, two hundred twenty-one".