12222020101220 has 48 divisors (see below), whose sum is σ = 25743357163440. Its totient is φ = 4874140675584.

The previous prime is 12222020101211. The next prime is 12222020101229. The reversal of 12222020101220 is 2210102022221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12222020101211) and next prime (12222020101229).

It can be written as a sum of positive squares in 8 ways, for example, as 1032406373476 + 11189613727744 = 1016074^2 + 3345088^2 .

It is not an unprimeable number, because it can be changed into a prime (12222020101229) 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, 8573342 + ... + 9896778.

It is an arithmetic number, because the mean of its divisors is an integer number (536319940905).

Almost surely, 2^{12222020101220} is an apocalyptic number.

12222020101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222020101220 is an abundant number, since it is smaller than the sum of its proper divisors (13521337062220).

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

12222020101220 is a wasteful number, since it uses less digits than its factorization.

12222020101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324832 (or 1324830 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12222020101220 its reverse (2210102022221), we get a palindrome (14432122123441).

The spelling of 12222020101220 in words is "twelve trillion, two hundred twenty-two billion, twenty million, one hundred one thousand, two hundred twenty".