12211212202 has 16 divisors (see below), whose sum is σ = 20978343360. Its totient is φ = 5222167488.

The previous prime is 12211212161. The next prime is 12211212257. The reversal of 12211212202 is 20221211221.

It is a happy number.

It is a super-2 number, since 2×12211212202² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927327 + ... + 940402.

It is an arithmetic number, because the mean of its divisors is an integer number (1311146460).

Almost surely, 2^12211212202 is an apocalyptic number.

12211212202 is a deficient number, since it is larger than the sum of its proper divisors (8767131158).

12211212202 is a wasteful number, since it uses less digits than its factorization.

12211212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868205.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12211212202 its reverse (20221211221), we get a palindrome (32432423423).

The spelling of 12211212202 in words is "twelve billion, two hundred eleven million, two hundred twelve thousand, two hundred two".