1220000220002 has 4 divisors (see below), whose sum is σ = 1830000330006. Its totient is φ = 610000110000.

The previous prime is 1220000220001. The next prime is 1220000220031. The reversal of 1220000220002 is 2000220000221.

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., 964620586801 + 255379633201 = 982151^2 + 505351^2 .

It is not an unprimeable number, because it can be changed into a prime (1220000220001) by changing a digit.

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 as a sum of consecutive naturals, namely, 305000054999 + ... + 305000055002.

Almost surely, 2^{1220000220002} is an apocalyptic number.

1220000220002 is a deficient number, since it is larger than the sum of its proper divisors (610000110004).

1220000220002 is an equidigital number, since it uses as much as digits as its factorization.

1220000220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610000110003.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 1220000220002 its reverse (2000220000221), we get a palindrome (3220220220223).

The spelling of 1220000220002 in words is "one trillion, two hundred twenty billion, two hundred twenty thousand, two".