401212 has 36 divisors (see below), whose sum is σ = 861840. Its totient is φ = 162624.

The previous prime is 401209. The next prime is 401231. The reversal of 401212 is 212104.

401212 is a modest number, since divided by 1212 gives 40 as remainder.

It is a nialpdrome in base 14.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4464 + ... + 4552.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2⁴⁰¹²¹² 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 401212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430920).

401212 is an abundant number, since it is smaller than the sum of its proper divisors (460628).

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

401212 is a wasteful number, since it uses less digits than its factorization.

401212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 401212 is about 633.4129774484. The cubic root of 401212 is about 73.7549723737.

Adding to 401212 its reverse (212104), we get a palindrome (613316).

The spelling of 401212 in words is "four hundred one thousand, two hundred twelve", and thus it is an iban number.