12211011092 has 72 divisors (see below), whose sum is σ = 25772463360. Its totient is φ = 5041606080.

The previous prime is 12211011091. The next prime is 12211011097. The reversal of 12211011092 is 29011011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211011091) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2856917 + ... + 2861187.

It is an arithmetic number, because the mean of its divisors is an integer number (357950880).

Almost surely, 2^12211011092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211011092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12886231680).

12211011092 is an abundant number, since it is smaller than the sum of its proper divisors (13561452268).

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

12211011092 is a wasteful number, since it uses less digits than its factorization.

12211011092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821 (or 4812 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 12211011092 in words is "twelve billion, two hundred eleven million, eleven thousand, ninety-two".