42220220220400 has 60 divisors (see below), whose sum is σ = 101441680321392. Its totient is φ = 16886822533120.

The previous prime is 42220220220391. The next prime is 42220220220443. The reversal of 42220220220400 is 402202202224.

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, 1398624 + ... + 9294976.

Almost surely, 2^{42220220220400} is an apocalyptic number.

42220220220400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42220220220400 is an abundant number, since it is smaller than the sum of its proper divisors (59221460100992).

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

42220220220400 is a wasteful number, since it uses less digits than its factorization.

42220220220400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7909738 (or 7909727 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 42220220220400 its reverse (402202202224), we get a palindrome (42622422422624).

The spelling of 42220220220400 in words is "forty-two trillion, two hundred twenty billion, two hundred twenty million, two hundred twenty thousand, four hundred".