12212202020 has 24 divisors (see below), whose sum is σ = 25655380800. Its totient is φ = 4883022432.

The previous prime is 12212202001. The next prime is 12212202029. The reversal of 12212202020 is 2020221221.

It is a junction number, because it is equal to n+sod(n) for n = 12212201986 and 12212202004.

It is not an unprimeable number, because it can be changed into a prime (12212202029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61640 + ... + 167999.

It is an arithmetic number, because the mean of its divisors is an integer number (1068974200).

Almost surely, 2^12212202020 is an apocalyptic number.

12212202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212202020 is an abundant number, since it is smaller than the sum of its proper divisors (13443178780).

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

12212202020 is a wasteful number, since it uses less digits than its factorization.

12212202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232307 (or 232305 counting only the distinct ones).

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

Adding to 12212202020 its reverse (2020221221), we get a palindrome (14232423241).

The spelling of 12212202020 in words is "twelve billion, two hundred twelve million, two hundred two thousand, twenty".