1222012221002 has 8 divisors (see below), whose sum is σ = 1877726095812. Its totient is φ = 596103522400.

The previous prime is 1222012220993. The next prime is 1222012221011. The reversal of 1222012221002 is 2001222102221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222012220993) and next prime (1222012221011).

It can be written as a sum of positive squares in 2 ways, for example, as 891719487481 + 330292733521 = 944309^2 + 574711^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 7451293949 + ... + 7451294112.

Almost surely, 2^{1222012221002} is an apocalyptic number.

1222012221002 is a deficient number, since it is larger than the sum of its proper divisors (655713874810).

1222012221002 is a wasteful number, since it uses less digits than its factorization.

1222012221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14902588104.

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

Adding to 1222012221002 its reverse (2001222102221), we get a palindrome (3223234323223).

The spelling of 1222012221002 in words is "one trillion, two hundred twenty-two billion, twelve million, two hundred twenty-one thousand, two".