422351111221400 has 96 divisors (see below), whose sum is σ = 986674151937600. Its totient is φ = 168131125248000.

The previous prime is 422351111221393. The next prime is 422351111221577. The reversal of 422351111221400 is 4122111153224.

It is a super-2 number, since 2×422351111221400² (a number of 30 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 23 ways as a sum of consecutive naturals, for example, 105714584 + ... + 109637016.

It is an arithmetic number, because the mean of its divisors is an integer number (10277855749350).

Almost surely, 2^{422351111221400} is an apocalyptic number.

422351111221400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422351111221400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493337075968800).

422351111221400 is an abundant number, since it is smaller than the sum of its proper divisors (564323040716200).

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

422351111221400 is a wasteful number, since it uses less digits than its factorization.

422351111221400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925029 (or 3925020 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 422351111221400 its reverse (4122111153224), we get a palindrome (426473222374624).

The spelling of 422351111221400 in words is "four hundred twenty-two trillion, three hundred fifty-one billion, one hundred eleven million, two hundred twenty-one thousand, four hundred".