1217222220602 has 16 divisors (see below), whose sum is σ = 1827305585280. Its totient is φ = 608120462592.

The previous prime is 1217222220587. The next prime is 1217222220607. The reversal of 1217222220602 is 2060222227121.

It is not an unprimeable number, because it can be changed into a prime (1217222220607) 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 7 ways as a sum of consecutive naturals, for example, 30423503 + ... + 30463485.

It is an arithmetic number, because the mean of its divisors is an integer number (114206599080).

Almost surely, 2^{1217222220602} is an apocalyptic number.

1217222220602 is a deficient number, since it is larger than the sum of its proper divisors (610083364678).

1217222220602 is a wasteful number, since it uses less digits than its factorization.

1217222220602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51877.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 1217222220602 its reverse (2060222227121), we get a palindrome (3277444447723).

The spelling of 1217222220602 in words is "one trillion, two hundred seventeen billion, two hundred twenty-two million, two hundred twenty thousand, six hundred two".