401443212120 has 32 divisors (see below), whose sum is σ = 1204329636720. Its totient is φ = 107051523200.

The previous prime is 401443212073. The next prime is 401443212161. The reversal of 401443212120 is 21212344104.

It is a super-2 number, since 2×401443212120² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1672679931 + ... + 1672680170.

Almost surely, 2^401443212120 is an apocalyptic number.

401443212120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401443212120 is an abundant number, since it is smaller than the sum of its proper divisors (802886424600).

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

401443212120 is a wasteful number, since it uses less digits than its factorization.

401443212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345360115 (or 3345360111 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 401443212120 its reverse (21212344104), we get a palindrome (422655556224).

The spelling of 401443212120 in words is "four hundred one billion, four hundred forty-three million, two hundred twelve thousand, one hundred twenty".