12211001080 has 64 divisors (see below), whose sum is σ = 27966060000. Its totient is φ = 4797210624.

The previous prime is 12211001017. The next prime is 12211001081. The reversal of 12211001080 is 8010011221.

It is a super-2 number, since 2×12211001080² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211001081) 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, 4003396 + ... + 4006444.

Almost surely, 2^12211001080 is an apocalyptic number.

12211001080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12211001080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13983030000).

12211001080 is an abundant number, since it is smaller than the sum of its proper divisors (15755058920).

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

12211001080 is a wasteful number, since it uses less digits than its factorization.

12211001080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4816 (or 4812 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The spelling of 12211001080 in words is "twelve billion, two hundred eleven million, one thousand, eighty".