12221012202 has 32 divisors (see below), whose sum is σ = 28190025600. Its totient is φ = 3459682368.

The previous prime is 12221012137. The next prime is 12221012227. The reversal of 12221012202 is 20221012221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330177 + ... + 1339332.

It is an arithmetic number, because the mean of its divisors is an integer number (880938300).

Almost surely, 2^12221012202 is an apocalyptic number.

12221012202 is an abundant number, since it is smaller than the sum of its proper divisors (15969013398).

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

12221012202 is a wasteful number, since it uses less digits than its factorization.

12221012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669630.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12221012202 its reverse (20221012221), we get a palindrome (32442024423).

The spelling of 12221012202 in words is "twelve billion, two hundred twenty-one million, twelve thousand, two hundred two".