1222102100122 has 4 divisors (see below), whose sum is σ = 1833153150186. Its totient is φ = 611051050060.

The previous prime is 1222102100113. The next prime is 1222102100189. The reversal of 1222102100122 is 2210012012221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 797179336801 + 424922763321 = 892849^2 + 651861^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1222102100096 and 1222102100105.

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 as a sum of consecutive naturals, namely, 305525525029 + ... + 305525525032.

Almost surely, 2^{1222102100122} is an apocalyptic number.

1222102100122 is a deficient number, since it is larger than the sum of its proper divisors (611051050064).

1222102100122 is an equidigital number, since it uses as much as digits as its factorization.

1222102100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611051050063.

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

Adding to 1222102100122 its reverse (2210012012221), we get a palindrome (3432114112343).

The spelling of 1222102100122 in words is "one trillion, two hundred twenty-two billion, one hundred two million, one hundred thousand, one hundred twenty-two".