401621010112 has 28 divisors (see below), whose sum is σ = 910819077520. Its totient is φ = 172123289856.

The previous prime is 401621010061. The next prime is 401621010143. The reversal of 401621010112 is 211010126104.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×401621010112² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401621010112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448237287 + ... + 448238182.

Almost surely, 2^401621010112 is an apocalyptic number.

It is an amenable number.

401621010112 is an abundant number, since it is smaller than the sum of its proper divisors (509198067408).

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

401621010112 is an equidigital number, since it uses as much as digits as its factorization.

401621010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896475488 (or 896475478 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 401621010112 its reverse (211010126104), we get a palindrome (612631136216).

The spelling of 401621010112 in words is "four hundred one billion, six hundred twenty-one million, ten thousand, one hundred twelve".