1220211221302 has 16 divisors (see below), whose sum is σ = 1832226624000. Its totient is φ = 609469308072.

The previous prime is 1220211221293. The next prime is 1220211221311. The reversal of 1220211221302 is 2031221120221.

It is an interprime number because it is at equal distance from previous prime (1220211221293) and next prime (1220211221311).

It is a self number, because there is not a number n which added to its sum of digits gives 1220211221302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8463673 + ... + 8606635.

It is an arithmetic number, because the mean of its divisors is an integer number (114514164000).

Almost surely, 2^{1220211221302} is an apocalyptic number.

1220211221302 is a deficient number, since it is larger than the sum of its proper divisors (612015402698).

1220211221302 is a wasteful number, since it uses less digits than its factorization.

1220211221302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147387.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1220211221302 its reverse (2031221120221), we get a palindrome (3251432341523).

The spelling of 1220211221302 in words is "one trillion, two hundred twenty billion, two hundred eleven million, two hundred twenty-one thousand, three hundred two".