401212226432 has 32 divisors (see below), whose sum is σ = 806760009720. Its totient is φ = 198731282944.

The previous prime is 401212226407. The next prime is 401212226447. The reversal of 401212226432 is 234622212104.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 401212226395 and 401212226404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14633363 + ... + 14660754.

Almost surely, 2^401212226432 is an apocalyptic number.

It is an amenable number.

401212226432 is an abundant number, since it is smaller than the sum of its proper divisors (405547783288).

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

401212226432 is a wasteful number, since it uses less digits than its factorization.

401212226432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29294238 (or 29294226 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 401212226432 its reverse (234622212104), we get a palindrome (635834438536).

The spelling of 401212226432 in words is "four hundred one billion, two hundred twelve million, two hundred twenty-six thousand, four hundred thirty-two".