9120201212 has 24 divisors (see below), whose sum is σ = 16440011952. Its totient is φ = 4424284800.

The previous prime is 9120201197. The next prime is 9120201283. The reversal of 9120201212 is 2121020219.

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 7 ways as a sum of consecutive naturals, for example, 123938 + ... + 183305.

It is an arithmetic number, because the mean of its divisors is an integer number (685000498).

Almost surely, 2^9120201212 is an apocalyptic number.

It is an amenable number.

9120201212 is a deficient number, since it is larger than the sum of its proper divisors (7319810740).

9120201212 is a wasteful number, since it uses less digits than its factorization.

9120201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307469 (or 307467 counting only the distinct ones).

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

The square root of 9120201212 is about 95499.7445651034. The cubic root of 9120201212 is about 2089.3032186555.

The spelling of 9120201212 in words is "nine billion, one hundred twenty million, two hundred one thousand, two hundred twelve".