401421012412 has 24 divisors (see below), whose sum is σ = 804804986720. Its totient is φ = 171616942080.

The previous prime is 401421012367. The next prime is 401421012413. The reversal of 401421012412 is 214210124104.

It is a super-2 number, since 2×401421012412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401421012413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17514789 + ... + 17537692.

Almost surely, 2^401421012412 is an apocalyptic number.

It is an amenable number.

401421012412 is an abundant number, since it is smaller than the sum of its proper divisors (403383974308).

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

401421012412 is a wasteful number, since it uses less digits than its factorization.

401421012412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35052901 (or 35052899 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 401421012412 its reverse (214210124104), we get a palindrome (615631136516).

The spelling of 401421012412 in words is "four hundred one billion, four hundred twenty-one million, twelve thousand, four hundred twelve".