120640401422 has 4 divisors (see below), whose sum is σ = 180960602136. Its totient is φ = 60320200710.

The previous prime is 120640401421. The next prime is 120640401437. The reversal of 120640401422 is 224104046021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224104046021 = 89 ⋅2518022989.

It is a super-2 number, since 2×120640401422² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120640401391 and 120640401400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120640401421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30160100354 + ... + 30160100357.

It is an arithmetic number, because the mean of its divisors is an integer number (45240150534).

Almost surely, 2^120640401422 is an apocalyptic number.

120640401422 is a deficient number, since it is larger than the sum of its proper divisors (60320200714).

120640401422 is an equidigital number, since it uses as much as digits as its factorization.

120640401422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60320200713.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 120640401422 its reverse (224104046021), we get a palindrome (344744447443).

The spelling of 120640401422 in words is "one hundred twenty billion, six hundred forty million, four hundred one thousand, four hundred twenty-two".