401221305124 has 24 divisors (see below), whose sum is σ = 747996611040. Its totient is φ = 187762408704.

The previous prime is 401221305073. The next prime is 401221305139. The reversal of 401221305124 is 421503122104.

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 7 ways as a sum of consecutive naturals, for example, 31796269 + ... + 31808884.

It is an arithmetic number, because the mean of its divisors is an integer number (31166525460).

Almost surely, 2^401221305124 is an apocalyptic number.

It is an amenable number.

401221305124 is a deficient number, since it is larger than the sum of its proper divisors (346775305916).

401221305124 is a wasteful number, since it uses less digits than its factorization.

401221305124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63605259 (or 63605257 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 401221305124 its reverse (421503122104), we get a palindrome (822724427228).

The spelling of 401221305124 in words is "four hundred one billion, two hundred twenty-one million, three hundred five thousand, one hundred twenty-four".