12211022020 has 48 divisors (see below), whose sum is σ = 26043978240. Its totient is φ = 4808162304.

The previous prime is 12211022003. The next prime is 12211022027. The reversal of 12211022020 is 2022011221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12211022027) 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, 2955316 + ... + 2959444.

It is an arithmetic number, because the mean of its divisors is an integer number (542582880).

Almost surely, 2^12211022020 is an apocalyptic number.

12211022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211022020 is an abundant number, since it is smaller than the sum of its proper divisors (13832956220).

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

12211022020 is a wasteful number, since it uses less digits than its factorization.

12211022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6412 (or 6410 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12211022020 its reverse (2022011221), we get a palindrome (14233033241).

The spelling of 12211022020 in words is "twelve billion, two hundred eleven million, twenty-two thousand, twenty".