401321212 has 6 divisors (see below), whose sum is σ = 702312128. Its totient is φ = 200660604.

The previous prime is 401321209. The next prime is 401321213. The reversal of 401321212 is 212123104.

It is a super-2 number, since 2×401321212² = 322117430402297888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401321213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50165148 + ... + 50165155.

Almost surely, 2^401321212 is an apocalyptic number.

It is an amenable number.

401321212 is a deficient number, since it is larger than the sum of its proper divisors (300990916).

401321212 is a wasteful number, since it uses less digits than its factorization.

401321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100330307 (or 100330305 counting only the distinct ones).

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

The square root of 401321212 is about 20033.0030699344. The cubic root of 401321212 is about 737.6166392940.

Adding to 401321212 its reverse (212123104), we get a palindrome (613444316).

The spelling of 401321212 in words is "four hundred one million, three hundred twenty-one thousand, two hundred twelve".