401213212 has 6 divisors (see below), whose sum is σ = 702123128. Its totient is φ = 200606604.

The previous prime is 401213207. The next prime is 401213213. The reversal of 401213212 is 212312104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401213213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50151648 + ... + 50151655.

Almost surely, 2^401213212 is an apocalyptic number.

It is an amenable number.

401213212 is a deficient number, since it is larger than the sum of its proper divisors (300909916).

401213212 is a wasteful number, since it uses less digits than its factorization.

401213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100303307 (or 100303305 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 401213212 is about 20030.3073366337. The cubic root of 401213212 is about 737.5504664115.

Adding to 401213212 its reverse (212312104), we get a palindrome (613525316).

The spelling of 401213212 in words is "four hundred one million, two hundred thirteen thousand, two hundred twelve".