401101423212 has 96 divisors (see below), whose sum is σ = 1086838326784. Its totient is φ = 112761331200.

The previous prime is 401101423109. The next prime is 401101423223. The reversal of 401101423212 is 212324101104.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2503887 + ... + 2659257.

Almost surely, 2^401101423212 is an apocalyptic number.

401101423212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401101423212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543419163392).

401101423212 is an abundant number, since it is smaller than the sum of its proper divisors (685736903572).

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

401101423212 is a wasteful number, since it uses less digits than its factorization.

401101423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155879 (or 155877 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 401101423212 its reverse (212324101104), we get a palindrome (613425524316).

The spelling of 401101423212 in words is "four hundred one billion, one hundred one million, four hundred twenty-three thousand, two hundred twelve".