1220112211222 has 8 divisors (see below), whose sum is σ = 1836921706272. Its totient is φ = 607804975800.

The previous prime is 1220112211189. The next prime is 1220112211229. The reversal of 1220112211222 is 2221122110221.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1220112211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220112211229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125564229 + ... + 1125565312.

It is an arithmetic number, because the mean of its divisors is an integer number (229615213284).

Almost surely, 2^{1220112211222} is an apocalyptic number.

1220112211222 is a deficient number, since it is larger than the sum of its proper divisors (616809495050).

1220112211222 is a wasteful number, since it uses less digits than its factorization.

1220112211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251129814.

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

Adding to 1220112211222 its reverse (2221122110221), we get a palindrome (3441234321443).

The spelling of 1220112211222 in words is "one trillion, two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-two".