222202021121 has 8 divisors (see below), whose sum is σ = 224296581600. Its totient is φ = 220107792448.

The previous prime is 222202021117. The next prime is 222202021133. The reversal of 222202021121 is 121120202222.

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 222202021121 - 2² = 222202021117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222202021121.

It is not an unprimeable number, because it can be changed into a prime (222202021021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1384370 + ... + 1536516.

It is an arithmetic number, because the mean of its divisors is an integer number (28037072700).

Almost surely, 2^222202021121 is an apocalyptic number.

It is an amenable number.

222202021121 is a deficient number, since it is larger than the sum of its proper divisors (2094560479).

222202021121 is a wasteful number, since it uses less digits than its factorization.

222202021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165903.

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

Adding to 222202021121 its reverse (121120202222), we get a palindrome (343322223343).

The spelling of 222202021121 in words is "two hundred twenty-two billion, two hundred two million, twenty-one thousand, one hundred twenty-one".