12022221020 has 48 divisors (see below), whose sum is σ = 25404624000. Its totient is φ = 4778887680.

The previous prime is 12022221019. The next prime is 12022221053. The reversal of 12022221020 is 2012222021.

It is a junction number, because it is equal to n+sod(n) for n = 12022220986 and 12022221004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2583656 + ... + 2588304.

It is an arithmetic number, because the mean of its divisors is an integer number (529263000).

Almost surely, 2^12022221020 is an apocalyptic number.

12022221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022221020 is an abundant number, since it is smaller than the sum of its proper divisors (13382402980).

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

12022221020 is a wasteful number, since it uses less digits than its factorization.

12022221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438 (or 5436 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12022221020 its reverse (2012222021), we get a palindrome (14034443041).

It can be divided in two parts, 1202 and 2221020, that added together give a palindrome (2222222).

The spelling of 12022221020 in words is "twelve billion, twenty-two million, two hundred twenty-one thousand, twenty".