9900122011211 has 8 divisors (see below), whose sum is σ = 10062526486848. Its totient is φ = 9737721000000.

The previous prime is 9900122011207. The next prime is 9900122011271. The reversal of 9900122011211 is 1121102210099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9900122011211 - 2² = 9900122011207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9900122011271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5247086 + ... + 6879836.

It is an arithmetic number, because the mean of its divisors is an integer number (1257815810856).

Almost surely, 2^{9900122011211} is an apocalyptic number.

9900122011211 is a deficient number, since it is larger than the sum of its proper divisors (162404475637).

9900122011211 is a wasteful number, since it uses less digits than its factorization.

9900122011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732213.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 9900122011211 in words is "nine trillion, nine hundred billion, one hundred twenty-two million, eleven thousand, two hundred eleven".