1223200311002 has 4 divisors (see below), whose sum is σ = 1834800466506. Its totient is φ = 611600155500.

The previous prime is 1223200310993. The next prime is 1223200311013. The reversal of 1223200311002 is 2001130023221.

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., 1220470353001 + 2729958001 = 1104749^2 + 52249^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305800077749 + ... + 305800077752.

Almost surely, 2^{1223200311002} is an apocalyptic number.

1223200311002 is a deficient number, since it is larger than the sum of its proper divisors (611600155504).

1223200311002 is an equidigital number, since it uses as much as digits as its factorization.

1223200311002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611600155503.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1223200311002 its reverse (2001130023221), we get a palindrome (3224330334223).

The spelling of 1223200311002 in words is "one trillion, two hundred twenty-three billion, two hundred million, three hundred eleven thousand, two".