12011022210 has 64 divisors (see below), whose sum is σ = 31500057600. Its totient is φ = 2906854080.

The previous prime is 12011022209. The next prime is 12011022241. The reversal of 12011022210 is 1222011021.

It is a super-2 number, since 2×12011022210² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167289 + ... + 228051.

It is an arithmetic number, because the mean of its divisors is an integer number (492188400).

Almost surely, 2^12011022210 is an apocalyptic number.

12011022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011022210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15750028800).

12011022210 is an abundant number, since it is smaller than the sum of its proper divisors (19489035390).

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

12011022210 is a wasteful number, since it uses less digits than its factorization.

12011022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61383.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12011022210 its reverse (1222011021), we get a palindrome (13233033231).

The spelling of 12011022210 in words is "twelve billion, eleven million, twenty-two thousand, two hundred ten".