12222131020 has 24 divisors (see below), whose sum is σ = 27999791568. Its totient is φ = 4444411200.

The previous prime is 12222130993. The next prime is 12222131029. The reversal of 12222131020 is 2013122221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12222130985 and 12222131003.

It is not an unprimeable number, because it can be changed into a prime (12222131029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27777351 + ... + 27777790.

It is an arithmetic number, because the mean of its divisors is an integer number (1166657982).

Almost surely, 2^12222131020 is an apocalyptic number.

12222131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222131020 is an abundant number, since it is smaller than the sum of its proper divisors (15777660548).

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

12222131020 is a wasteful number, since it uses less digits than its factorization.

12222131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555161 (or 55555159 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12222131020 its reverse (2013122221), we get a palindrome (14235253241).

The spelling of 12222131020 in words is "twelve billion, two hundred twenty-two million, one hundred thirty-one thousand, twenty".