2120151202221 has 8 divisors (see below), whose sum is σ = 3044319675040. Its totient is φ = 1304708432112.

The previous prime is 2120151202199. The next prime is 2120151202231. The reversal of 2120151202221 is 1222021510212.

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

It is not a de Polignac number, because 2120151202221 - 2⁶ = 2120151202157 is a prime.

It is a super-2 number, since 2×2120151202221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120151202231) 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, 27181425631 + ... + 27181425708.

It is an arithmetic number, because the mean of its divisors is an integer number (380539959380).

Almost surely, 2^{2120151202221} is an apocalyptic number.

It is an amenable number.

2120151202221 is a deficient number, since it is larger than the sum of its proper divisors (924168472819).

2120151202221 is a wasteful number, since it uses less digits than its factorization.

2120151202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54362851355.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 2120151202221 its reverse (1222021510212), we get a palindrome (3342172712433).

The spelling of 2120151202221 in words is "two trillion, one hundred twenty billion, one hundred fifty-one million, two hundred two thousand, two hundred twenty-one".