1222100120222 has 16 divisors (see below), whose sum is σ = 1964367880272. Its totient is φ = 568176950400.

The previous prime is 1222100120191. The next prime is 1222100120231. The reversal of 1222100120222 is 2220210012221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1222100120222.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 216528029 + ... + 216533672.

It is an arithmetic number, because the mean of its divisors is an integer number (122772992517).

Almost surely, 2^{1222100120222} is an apocalyptic number.

1222100120222 is a deficient number, since it is larger than the sum of its proper divisors (742267760050).

1222100120222 is a wasteful number, since it uses less digits than its factorization.

1222100120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433061803.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222100120222 its reverse (2220210012221), we get a palindrome (3442310132443).

The spelling of 1222100120222 in words is "one trillion, two hundred twenty-two billion, one hundred million, one hundred twenty thousand, two hundred twenty-two".