9891012200222 has 4 divisors (see below), whose sum is σ = 14836518300336. Its totient is φ = 4945506100110.

The previous prime is 9891012200191. The next prime is 9891012200239. The reversal of 9891012200222 is 2220022101989.

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

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, 2472753050054 + ... + 2472753050057.

It is an arithmetic number, because the mean of its divisors is an integer number (3709129575084).

Almost surely, 2^{9891012200222} is an apocalyptic number.

9891012200222 is a deficient number, since it is larger than the sum of its proper divisors (4945506100114).

9891012200222 is a wasteful number, since it uses less digits than its factorization.

9891012200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945506100113.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 9891012200222 in words is "nine trillion, eight hundred ninety-one billion, twelve million, two hundred thousand, two hundred twenty-two".