401332310212 has 24 divisors (see below), whose sum is σ = 719716371192. Its totient is φ = 195702528000.

The previous prime is 401332310189. The next prime is 401332310299. The reversal of 401332310212 is 212013233104.

It can be written as a sum of positive squares in 4 ways, for example, as 5912687236 + 395419622976 = 76894^2 + 628824^2 .

It is a super-2 number, since 2×401332310212² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32712 + ... + 896512.

It is an arithmetic number, because the mean of its divisors is an integer number (29988182133).

Almost surely, 2^401332310212 is an apocalyptic number.

It is an amenable number.

401332310212 is a deficient number, since it is larger than the sum of its proper divisors (318384060980).

401332310212 is a wasteful number, since it uses less digits than its factorization.

401332310212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866679 (or 866677 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 401332310212 its reverse (212013233104), we get a palindrome (613345543316).

The spelling of 401332310212 in words is "four hundred one billion, three hundred thirty-two million, three hundred ten thousand, two hundred twelve".