9900100211222 has 32 divisors (see below), whose sum is σ = 16477272588672. Its totient is φ = 4432482561024.

The previous prime is 9900100211161. The next prime is 9900100211227. The reversal of 9900100211222 is 2221120010099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9900100211227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35709503 + ... + 35985674.

It is an arithmetic number, because the mean of its divisors is an integer number (514914768396).

Almost surely, 2^{9900100211222} is an apocalyptic number.

9900100211222 is a deficient number, since it is larger than the sum of its proper divisors (6577172377450).

9900100211222 is a wasteful number, since it uses less digits than its factorization.

9900100211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71695352.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 9900100211222 in words is "nine trillion, nine hundred billion, one hundred million, two hundred eleven thousand, two hundred twenty-two".