1121212213222 has 32 divisors (see below), whose sum is σ = 1725581491200. Its totient is φ = 546229555200.

The previous prime is 1121212213201. The next prime is 1121212213229. The reversal of 1121212213222 is 2223122121211.

It is a junction number, because it is equal to n+sod(n) for n = 1121212213193 and 1121212213202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121212213229) 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, 6536283 + ... + 6705625.

It is an arithmetic number, because the mean of its divisors is an integer number (53924421600).

Almost surely, 2^{1121212213222} is an apocalyptic number.

1121212213222 is a deficient number, since it is larger than the sum of its proper divisors (604369277978).

1121212213222 is a wasteful number, since it uses less digits than its factorization.

1121212213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169968.

The product of its digits is 384, while the sum is 22.

Adding to 1121212213222 its reverse (2223122121211), we get a palindrome (3344334334433).

The spelling of 1121212213222 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred thirteen thousand, two hundred twenty-two".