9900311222211 has 4 divisors (see below), whose sum is σ = 13200414962952. Its totient is φ = 6600207481472.

The previous prime is 9900311222177. The next prime is 9900311222227. The reversal of 9900311222211 is 1122221130099.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9900311222211 - 2³⁰ = 9899237480387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9900311222251) 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, 1650051870366 + ... + 1650051870371.

It is an arithmetic number, because the mean of its divisors is an integer number (3300103740738).

Almost surely, 2^{9900311222211} is an apocalyptic number.

9900311222211 is a deficient number, since it is larger than the sum of its proper divisors (3300103740741).

9900311222211 is a wasteful number, since it uses less digits than its factorization.

9900311222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300103740740.

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 9900311222211 in words is "nine trillion, nine hundred billion, three hundred eleven million, two hundred twenty-two thousand, two hundred eleven".