910221212 has 12 divisors (see below), whose sum is σ = 1593216576. Its totient is φ = 455016480.

The previous prime is 910221167. The next prime is 910221241. The reversal of 910221212 is 212122019.

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 in 3 ways as a sum of consecutive naturals, for example, 1088 + ... + 42680.

It is an arithmetic number, because the mean of its divisors is an integer number (132768048).

Almost surely, 2^910221212 is an apocalyptic number.

It is an amenable number.

910221212 is a deficient number, since it is larger than the sum of its proper divisors (682995364).

910221212 is a wasteful number, since it uses less digits than its factorization.

910221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47068 (or 47066 counting only the distinct ones).

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

The square root of 910221212 is about 30169.8725883952. The cubic root of 910221212 is about 969.1306243094.

The spelling of 910221212 in words is "nine hundred ten million, two hundred twenty-one thousand, two hundred twelve".