120421404042 has 32 divisors (see below), whose sum is σ = 242529400320. Its totient is φ = 39859570800.

The previous prime is 120421404031. The next prime is 120421404049. The reversal of 120421404042 is 240404124021.

It is a super-2 number, since 2×120421404042² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120421404049) 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 in 15 ways as a sum of consecutive naturals, for example, 2515809 + ... + 2563227.

It is an arithmetic number, because the mean of its divisors is an integer number (7579043760).

Almost surely, 2^120421404042 is an apocalyptic number.

120421404042 is an abundant number, since it is smaller than the sum of its proper divisors (122107996278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120421404042 is a wasteful number, since it uses less digits than its factorization.

120421404042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50378.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 120421404042 its reverse (240404124021), we get a palindrome (360825528063).

The spelling of 120421404042 in words is "one hundred twenty billion, four hundred twenty-one million, four hundred four thousand, forty-two".