12202211211121 has 16 divisors (see below), whose sum is σ = 12513676500864. Its totient is φ = 11892015604224.

The previous prime is 12202211211079. The next prime is 12202211211137. The reversal of 12202211211121 is 12111211220221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12202211211121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12202211211181) 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, 97635745 + ... + 97760641.

It is an arithmetic number, because the mean of its divisors is an integer number (782104781304).

Almost surely, 2^{12202211211121} is an apocalyptic number.

It is an amenable number.

12202211211121 is a deficient number, since it is larger than the sum of its proper divisors (311465289743).

12202211211121 is a wasteful number, since it uses less digits than its factorization.

12202211211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129960.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12202211211121 its reverse (12111211220221), we get a palindrome (24313422431342).

It can be divided in two parts, 1220221 and 1211121, that added together give a palindrome (2431342).

The spelling of 12202211211121 in words is "twelve trillion, two hundred two billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty-one".