12202221122 has 64 divisors (see below), whose sum is σ = 23322829824. Its totient is φ = 4659586560.

The previous prime is 12202221091. The next prime is 12202221127. The reversal of 12202221122 is 22112220221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12202221122.

It is not an unprimeable number, because it can be changed into a prime (12202221127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614672 + ... + 634212.

It is an arithmetic number, because the mean of its divisors is an integer number (364419216).

Almost surely, 2^12202221122 is an apocalyptic number.

12202221122 is a deficient number, since it is larger than the sum of its proper divisors (11120608702).

12202221122 is a wasteful number, since it uses less digits than its factorization.

12202221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19683.

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

Adding to 12202221122 its reverse (22112220221), we get a palindrome (34314441343).

Subtracting 12202221122 from its reverse (22112220221), we obtain a palindrome (9909999099).

The spelling of 12202221122 in words is "twelve billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-two".