111220020122212 has 48 divisors (see below), whose sum is σ = 208096636954752. Its totient is φ = 51827783431680.

The previous prime is 111220020122209. The next prime is 111220020122273. The reversal of 111220020122212 is 212221020022111.

It is a self number, because there is not a number n which added to its sum of digits gives 111220020122212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127113858 + ... + 127985830.

It is an arithmetic number, because the mean of its divisors is an integer number (4335346603224).

Almost surely, 2^{111220020122212} is an apocalyptic number.

It is an amenable number.

111220020122212 is a deficient number, since it is larger than the sum of its proper divisors (96876616832540).

111220020122212 is a wasteful number, since it uses less digits than its factorization.

111220020122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890308 (or 890306 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 111220020122212 its reverse (212221020022111), we get a palindrome (323441040144323).

The spelling of 111220020122212 in words is "one hundred eleven trillion, two hundred twenty billion, twenty million, one hundred twenty-two thousand, two hundred twelve".