401123221024 has 24 divisors (see below), whose sum is σ = 789747936768. Its totient is φ = 200552316480.

The previous prime is 401123221021. The next prime is 401123221039. The reversal of 401123221024 is 420122321104.

It is a junction number, because it is equal to n+sod(n) for n = 401123220986 and 401123221004.

It is not an unprimeable number, because it can be changed into a prime (401123221021) by changing a digit.

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, 439089 + ... + 997519.

It is an arithmetic number, because the mean of its divisors is an integer number (32906164032).

Almost surely, 2^401123221024 is an apocalyptic number.

It is an amenable number.

401123221024 is a deficient number, since it is larger than the sum of its proper divisors (388624715744).

401123221024 is a wasteful number, since it uses less digits than its factorization.

401123221024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580888 (or 580880 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 401123221024 its reverse (420122321104), we get a palindrome (821245542128).

The spelling of 401123221024 in words is "four hundred one billion, one hundred twenty-three million, two hundred twenty-one thousand, twenty-four".