401421012104 has 64 divisors (see below), whose sum is σ = 912041544960. Its totient is φ = 161694720000.

The previous prime is 401421012103. The next prime is 401421012127. The reversal of 401421012104 is 401210124104.

It is a super-2 number, since 2×401421012104² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401421012101) 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 15 ways as a sum of consecutive naturals, for example, 402104 + ... + 982104.

It is an arithmetic number, because the mean of its divisors is an integer number (14250649140).

Almost surely, 2^401421012104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401421012104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456020772480).

401421012104 is an abundant number, since it is smaller than the sum of its proper divisors (510620532856).

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

401421012104 is a wasteful number, since it uses less digits than its factorization.

401421012104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580758 (or 580754 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 401421012104 its reverse (401210124104), we get a palindrome (802631136208).

The spelling of 401421012104 in words is "four hundred one billion, four hundred twenty-one million, twelve thousand, one hundred four".