120210211220221 has 16 divisors (see below), whose sum is σ = 127285263705600. Its totient is φ = 113332090915008.

The previous prime is 120210211220213. The next prime is 120210211220227. The reversal of 120210211220221 is 122022112012021.

It is a cyclic number.

It is not a de Polignac number, because 120210211220221 - 2³ = 120210211220213 is a prime.

It is a super-2 number, since 2×120210211220221² (a number of 29 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 (120210211220227) 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, 10160766 + ... + 18538111.

It is an arithmetic number, because the mean of its divisors is an integer number (7955328981600).

Almost surely, 2^{120210211220221} is an apocalyptic number.

It is an amenable number.

120210211220221 is a deficient number, since it is larger than the sum of its proper divisors (7075052485379).

120210211220221 is a wasteful number, since it uses less digits than its factorization.

120210211220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28702308.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120210211220221 its reverse (122022112012021), we get a palindrome (242232323232242).

The spelling of 120210211220221 in words is "one hundred twenty trillion, two hundred ten billion, two hundred eleven million, two hundred twenty thousand, two hundred twenty-one".