120221332431 has 16 divisors (see below), whose sum is σ = 171915315840. Its totient is φ = 74496633120.

The previous prime is 120221332403. The next prime is 120221332489. The reversal of 120221332431 is 134233122021.

It is not a de Polignac number, because 120221332431 - 2⁶ = 120221332367 is a prime.

It is a super-2 number, since 2×120221332431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221332631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19894585 + ... + 19900626.

It is an arithmetic number, because the mean of its divisors is an integer number (10744707240).

Almost surely, 2^120221332431 is an apocalyptic number.

120221332431 is a deficient number, since it is larger than the sum of its proper divisors (51693983409).

120221332431 is a wasteful number, since it uses less digits than its factorization.

120221332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39795286.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 120221332431 its reverse (134233122021), we get a palindrome (254454454452).

The spelling of 120221332431 in words is "one hundred twenty billion, two hundred twenty-one million, three hundred thirty-two thousand, four hundred thirty-one".