12202221121 has 8 divisors (see below), whose sum is σ = 12930904800. Its totient is φ = 11474749248.

The previous prime is 12202221091. The next prime is 12202221127. The reversal of 12202221121 is 12112220221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12202221121 - 2⁷ = 12202220993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202221095 and 12202221104.

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 7 ways as a sum of consecutive naturals, for example, 282171 + ... + 322528.

It is an arithmetic number, because the mean of its divisors is an integer number (1616363100).

Almost surely, 2^12202221121 is an apocalyptic number.

It is an amenable number.

12202221121 is a deficient number, since it is larger than the sum of its proper divisors (728683679).

12202221121 is a wasteful number, since it uses less digits than its factorization.

12202221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605903.

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

Adding to 12202221121 its reverse (12112220221), we get a palindrome (24314441342).

The spelling of 12202221121 in words is "twelve billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-one".