400312213412012 has 12 divisors (see below), whose sum is σ = 764232407423016. Its totient is φ = 181960097005440.

The previous prime is 400312213411973. The next prime is 400312213412047. The reversal of 400312213412012 is 210214312213004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4549002425093 + ... + 4549002425180.

It is an arithmetic number, because the mean of its divisors is an integer number (63686033951918).

Almost surely, 2^{400312213412012} is an apocalyptic number.

It is an amenable number.

400312213412012 is a deficient number, since it is larger than the sum of its proper divisors (363920194011004).

400312213412012 is a wasteful number, since it uses less digits than its factorization.

400312213412012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9098004850288 (or 9098004850286 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 400312213412012 its reverse (210214312213004), we get a palindrome (610526525625016).

The spelling of 400312213412012 in words is "four hundred trillion, three hundred twelve billion, two hundred thirteen million, four hundred twelve thousand, twelve".