12010012220 has 24 divisors (see below), whose sum is σ = 25237145808. Its totient is φ = 4800934400.

The previous prime is 12010012181. The next prime is 12010012303. The reversal of 12010012220 is 2221001021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159701 + ... + 222540.

It is an arithmetic number, because the mean of its divisors is an integer number (1051547742).

Almost surely, 2^12010012220 is an apocalyptic number.

12010012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010012220 is an abundant number, since it is smaller than the sum of its proper divisors (13227133588).

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

12010012220 is a wasteful number, since it uses less digits than its factorization.

12010012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383821 (or 383819 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12010012220 its reverse (2221001021), we get a palindrome (14231013241).

The spelling of 12010012220 in words is "twelve billion, ten million, twelve thousand, two hundred twenty".