120444313222421 has 2 divisors, whose sum is σ = 120444313222422. Its totient is φ = 120444313222420.

The previous prime is 120444313222367. The next prime is 120444313222427. The reversal of 120444313222421 is 124222313444021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84242310646321 + 36202002576100 = 9178361^2 + 6016810^2 .

It is a cyclic number.

It is not a de Polignac number, because 120444313222421 - 2¹⁸ = 120444312960277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120444313222427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60222156611210 + 60222156611211.

It is an arithmetic number, because the mean of its divisors is an integer number (60222156611211).

Almost surely, 2^{120444313222421} is an apocalyptic number.

It is an amenable number.

120444313222421 is a deficient number, since it is larger than the sum of its proper divisors (1).

120444313222421 is an equidigital number, since it uses as much as digits as its factorization.

120444313222421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 120444313222421 its reverse (124222313444021), we get a palindrome (244666626666442).

The spelling of 120444313222421 in words is "one hundred twenty trillion, four hundred forty-four billion, three hundred thirteen million, two hundred twenty-two thousand, four hundred twenty-one".