42025121400 has 48 divisors (see below), whose sum is σ = 130277878200. Its totient is φ = 11206698880.

The previous prime is 42025121389. The next prime is 42025121429. The reversal of 42025121400 is 412152024.

42025121400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42025121400² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35020335 + ... + 35021534.

Almost surely, 2^42025121400 is an apocalyptic number.

42025121400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42025121400 is an abundant number, since it is smaller than the sum of its proper divisors (88252756800).

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

42025121400 is a wasteful number, since it uses less digits than its factorization.

42025121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70041888 (or 70041879 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 42025121400 its reverse (412152024), we get a palindrome (42437273424).

The spelling of 42025121400 in words is "forty-two billion, twenty-five million, one hundred twenty-one thousand, four hundred".