912212201 has 4 divisors (see below), whose sum is σ = 912278400. Its totient is φ = 912146004.

The previous prime is 912212167. The next prime is 912212281. The reversal of 912212201 is 102212219.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-912212201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (912212281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761 + ... + 42878.

It is an arithmetic number, because the mean of its divisors is an integer number (228069600).

Almost surely, 2^912212201 is an apocalyptic number.

It is an amenable number.

912212201 is a deficient number, since it is larger than the sum of its proper divisors (66199).

912212201 is a wasteful number, since it uses less digits than its factorization.

912212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66198.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 912212201 is about 30202.8508753727. The cubic root of 912212201 is about 969.8367249185.

The spelling of 912212201 in words is "nine hundred twelve million, two hundred twelve thousand, two hundred one".