120220220222121 has 4 divisors (see below), whose sum is σ = 160293626962832. Its totient is φ = 80146813481412.

The previous prime is 120220220222093. The next prime is 120220220222149. The reversal of 120220220222121 is 121222022022021.

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 an interprime number because it is at equal distance from previous prime (120220220222093) and next prime (120220220222149).

It is not a de Polignac number, because 120220220222121 - 2¹⁸ = 120220219959977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120220220222161) 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, 20036703370351 + ... + 20036703370356.

It is an arithmetic number, because the mean of its divisors is an integer number (40073406740708).

Almost surely, 2^{120220220222121} is an apocalyptic number.

It is an amenable number.

120220220222121 is a deficient number, since it is larger than the sum of its proper divisors (40073406740711).

120220220222121 is an equidigital number, since it uses as much as digits as its factorization.

120220220222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40073406740710.

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

Adding to 120220220222121 its reverse (121222022022021), we get a palindrome (241442242244142).

The spelling of 120220220222121 in words is "one hundred twenty trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".