400010042212 has 12 divisors (see below), whose sum is σ = 763655535216. Its totient is φ = 181822746440.

The previous prime is 400010042189. The next prime is 400010042227. The reversal of 400010042212 is 212240010004.

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, 4545568618 + ... + 4545568705.

It is an arithmetic number, because the mean of its divisors is an integer number (63637961268).

Almost surely, 2^400010042212 is an apocalyptic number.

It is an amenable number.

400010042212 is a deficient number, since it is larger than the sum of its proper divisors (363645493004).

400010042212 is a wasteful number, since it uses less digits than its factorization.

400010042212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091137338 (or 9091137336 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 400010042212 its reverse (212240010004), we get a palindrome (612250052216).

The spelling of 400010042212 in words is "four hundred billion, ten million, forty-two thousand, two hundred twelve".