12222120020 has 48 divisors (see below), whose sum is σ = 28354233600. Its totient is φ = 4388142720.

The previous prime is 12222119951. The next prime is 12222120023. The reversal of 12222120020 is 2002122221.

It is a junction number, because it is equal to n+sod(n) for n = 12222119977 and 12222120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222120023) 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, 334235 + ... + 368994.

It is an arithmetic number, because the mean of its divisors is an integer number (590713200).

Almost surely, 2^12222120020 is an apocalyptic number.

12222120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222120020 is an abundant number, since it is smaller than the sum of its proper divisors (16132113580).

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

12222120020 is a wasteful number, since it uses less digits than its factorization.

12222120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703328 (or 703326 counting only the distinct ones).

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

Adding to 12222120020 its reverse (2002122221), we get a palindrome (14224242241).

It can be divided in two parts, 122221 and 20020, that added together give a palindrome (142241).

The spelling of 12222120020 in words is "twelve billion, two hundred twenty-two million, one hundred twenty thousand, twenty".