9902111211122 has 16 divisors (see below), whose sum is σ = 16936642705752. Its totient is φ = 4301369575680.

The previous prime is 9902111211103. The next prime is 9902111211137. The reversal of 9902111211122 is 2211121112099.

It can be written as a sum of positive squares in 4 ways, for example, as 5851749683521 + 4050361527601 = 2419039^2 + 2012551^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11201482829 + ... + 11201483712.

Almost surely, 2^{9902111211122} is an apocalyptic number.

9902111211122 is a deficient number, since it is larger than the sum of its proper divisors (7034531494630).

9902111211122 is a wasteful number, since it uses less digits than its factorization.

9902111211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22402966573.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 9902111211122 in words is "nine trillion, nine hundred two billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty-two".