404401421212 has 6 divisors (see below), whose sum is σ = 707702487128. Its totient is φ = 202200710604.

The previous prime is 404401421189. The next prime is 404401421231. The reversal of 404401421212 is 212124104404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550177648 + ... + 50550177655.

Almost surely, 2^404401421212 is an apocalyptic number.

It is an amenable number.

404401421212 is a deficient number, since it is larger than the sum of its proper divisors (303301065916).

404401421212 is a wasteful number, since it uses less digits than its factorization.

404401421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101100355307 (or 101100355305 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 404401421212 its reverse (212124104404), we get a palindrome (616525525616).

The spelling of 404401421212 in words is "four hundred four billion, four hundred one million, four hundred twenty-one thousand, two hundred twelve".