120737220221 has 16 divisors (see below), whose sum is σ = 123070200384. Its totient is φ = 118420562304.

The previous prime is 120737220193. The next prime is 120737220251. The reversal of 120737220221 is 122022737021.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120737220221 is a prime.

It is a super-4 number, since 4×120737220221⁴ (a number of 45 digits) contains 4444 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 (120737220251) 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 15 ways as a sum of consecutive naturals, for example, 43476185 + ... + 43478961.

It is an arithmetic number, because the mean of its divisors is an integer number (7691887524).

Almost surely, 2^120737220221 is an apocalyptic number.

It is an amenable number.

120737220221 is a deficient number, since it is larger than the sum of its proper divisors (2332980163).

120737220221 is a wasteful number, since it uses less digits than its factorization.

120737220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 120737220221 its reverse (122022737021), we get a palindrome (242759957242).

The spelling of 120737220221 in words is "one hundred twenty billion, seven hundred thirty-seven million, two hundred twenty thousand, two hundred twenty-one".