240121212020420 has 48 divisors (see below), whose sum is σ = 526181714972928. Its totient is φ = 91871929607040.

The previous prime is 240121212020413. The next prime is 240121212020483. The reversal of 240121212020420 is 24020212121042.

240121212020420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82775750 + ... + 85627490.

It is an arithmetic number, because the mean of its divisors is an integer number (10962119061936).

Almost surely, 2^{240121212020420} is an apocalyptic number.

240121212020420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240121212020420 is an abundant number, since it is smaller than the sum of its proper divisors (286060502952508).

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

240121212020420 is a wasteful number, since it uses less digits than its factorization.

240121212020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034820 (or 3034818 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 240121212020420 its reverse (24020212121042), we get a palindrome (264141424141462).

The spelling of 240121212020420 in words is "two hundred forty trillion, one hundred twenty-one billion, two hundred twelve million, twenty thousand, four hundred twenty".