1222122222222 has 32 divisors (see below), whose sum is σ = 2692848979584. Its totient is φ = 366673332000.

The previous prime is 1222122222187. The next prime is 1222122222229. The reversal of 1222122222222 is 2222222212221.

It is a nude number because it is divisible by every one of its digits.

1222122222222 is a modest number, since divided by 2222222 gives 122212 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1222122222192 and 1222122222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122222229) 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 15 ways as a sum of consecutive naturals, for example, 91661668 + ... + 91674999.

It is an arithmetic number, because the mean of its divisors is an integer number (84151530612).

Almost surely, 2^{1222122222222} is an apocalyptic number.

1222122222222 is an abundant number, since it is smaller than the sum of its proper divisors (1470726757362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222122222222 is a wasteful number, since it uses less digits than its factorization.

1222122222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183336784.

The product of its digits is 2048, while the sum is 24.

Adding to 1222122222222 its reverse (2222222212221), we get a palindrome (3444344434443).

The spelling of 1222122222222 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".