120120102110221 has 4 divisors (see below), whose sum is σ = 125342715245472. Its totient is φ = 114897488974972.

The previous prime is 120120102110219. The next prime is 120120102110233. The reversal of 120120102110221 is 122011201021021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120120102110221 - 2¹ = 120120102110219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120120102110195 and 120120102110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120102110321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2611306567591 + ... + 2611306567636.

It is an arithmetic number, because the mean of its divisors is an integer number (31335678811368).

Almost surely, 2^{120120102110221} is an apocalyptic number.

It is an amenable number.

120120102110221 is a deficient number, since it is larger than the sum of its proper divisors (5222613135251).

120120102110221 is an equidigital number, since it uses as much as digits as its factorization.

120120102110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222613135250.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120120102110221 its reverse (122011201021021), we get a palindrome (242131303131242).

The spelling of 120120102110221 in words is "one hundred twenty trillion, one hundred twenty billion, one hundred two million, one hundred ten thousand, two hundred twenty-one".