1121201222222 has 8 divisors (see below), whose sum is σ = 1736053505472. Its totient is φ = 542516720400.

The previous prime is 1121201222213. The next prime is 1121201222227. The reversal of 1121201222222 is 2222221021211.

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

It is a junction number, because it is equal to n+sod(n) for n = 1121201222194 and 1121201222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121201222227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9041945279 + ... + 9041945402.

It is an arithmetic number, because the mean of its divisors is an integer number (217006688184).

Almost surely, 2^{1121201222222} is an apocalyptic number.

1121201222222 is a deficient number, since it is larger than the sum of its proper divisors (614852283250).

1121201222222 is a wasteful number, since it uses less digits than its factorization.

1121201222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18083890714.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1121201222222 its reverse (2222221021211), we get a palindrome (3343422243433).

The spelling of 1121201222222 in words is "one trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, two hundred twenty-two".