1222012100122 has 16 divisors (see below), whose sum is σ = 1999703700000. Its totient is φ = 555446841040.

The previous prime is 1222012100051. The next prime is 1222012100161. The reversal of 1222012100122 is 2210012102221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1222012100096 and 1222012100105.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 318504 + ... + 1595452.

It is an arithmetic number, because the mean of its divisors is an integer number (124981481250).

Almost surely, 2^{1222012100122} is an apocalyptic number.

1222012100122 is a deficient number, since it is larger than the sum of its proper divisors (777691599878).

1222012100122 is a wasteful number, since it uses less digits than its factorization.

1222012100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320461.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222012100122 its reverse (2210012102221), we get a palindrome (3432024202343).

The spelling of 1222012100122 in words is "one trillion, two hundred twenty-two billion, twelve million, one hundred thousand, one hundred twenty-two".