11211100122 has 32 divisors (see below), whose sum is σ = 23343694272. Its totient is φ = 3586218624.

The previous prime is 11211100097. The next prime is 11211100141. The reversal of 11211100122 is 22100111211.

It is a junction number, because it is equal to n+sod(n) for n = 11211100098 and 11211100107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329688 + ... + 362099.

It is an arithmetic number, because the mean of its divisors is an integer number (729490446).

Almost surely, 2^11211100122 is an apocalyptic number.

11211100122 is an abundant number, since it is smaller than the sum of its proper divisors (12132594150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211100122 is a wasteful number, since it uses less digits than its factorization.

11211100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691902.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11211100122 its reverse (22100111211), we get a palindrome (33311211333).

The spelling of 11211100122 in words is "eleven billion, two hundred eleven million, one hundred thousand, one hundred twenty-two".