1122217122212 has 24 divisors (see below), whose sum is σ = 1989339542400. Its totient is φ = 553838684256.

The previous prime is 1122217122203. The next prime is 1122217122233. The reversal of 1122217122212 is 2122217122211.

It is a happy number.

It is an unprimeable number.

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, 515714 + ... + 1584422.

It is an arithmetic number, because the mean of its divisors is an integer number (82889147600).

Almost surely, 2^{1122217122212} is an apocalyptic number.

It is an amenable number.

1122217122212 is a deficient number, since it is larger than the sum of its proper divisors (867122420188).

1122217122212 is a wasteful number, since it uses less digits than its factorization.

1122217122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072115 (or 1072113 counting only the distinct ones).

The product of its digits is 896, while the sum is 26.

Subtracting 1122217122212 from its reverse (2122217122211), we obtain a palindrome (999999999999).

The spelling of 1122217122212 in words is "one trillion, one hundred twenty-two billion, two hundred seventeen million, one hundred twenty-two thousand, two hundred twelve".