120202221220221 has 32 divisors (see below), whose sum is σ = 184945311416320. Its totient is φ = 68019487720704.

The previous prime is 120202221220177. The next prime is 120202221220247. The reversal of 120202221220221 is 122022122202021.

It is not a de Polignac number, because 120202221220221 - 2⁶ = 120202221220157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120202221225221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330668661 + ... + 331031973.

It is an arithmetic number, because the mean of its divisors is an integer number (5779540981760).

Almost surely, 2^{120202221220221} is an apocalyptic number.

It is an amenable number.

120202221220221 is a deficient number, since it is larger than the sum of its proper divisors (64743090196099).

120202221220221 is a wasteful number, since it uses less digits than its factorization.

120202221220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516385.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 120202221220221 its reverse (122022122202021), we get a palindrome (242224343422242).

The spelling of 120202221220221 in words is "one hundred twenty trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-one".