42220021400 has 48 divisors (see below), whose sum is σ = 98254388400. Its totient is φ = 16872036480.

The previous prime is 42220021307. The next prime is 42220021411. The reversal of 42220021400 is 412002224.

It is a happy number.

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, 113306 + ... + 311894.

It is an arithmetic number, because the mean of its divisors is an integer number (2046966425).

Almost surely, 2^42220021400 is an apocalyptic number.

42220021400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42220021400 is an abundant number, since it is smaller than the sum of its proper divisors (56034367000).

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

42220021400 is a wasteful number, since it uses less digits than its factorization.

42220021400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199668 (or 199659 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 42220021400 its reverse (412002224), we get a palindrome (42632023624).

The spelling of 42220021400 in words is "forty-two billion, two hundred twenty million, twenty-one thousand, four hundred".