1222112331002 has 4 divisors (see below), whose sum is σ = 1833168496506. Its totient is φ = 611056165500.

The previous prime is 1222112331001. The next prime is 1222112331007. The reversal of 1222112331002 is 2001332112221.

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., 836037751201 + 386074579801 = 914351^2 + 621349^2 .

It is not an unprimeable number, because it can be changed into a prime (1222112331001) 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 as a sum of consecutive naturals, namely, 305528082749 + ... + 305528082752.

Almost surely, 2^{1222112331002} is an apocalyptic number.

1222112331002 is a deficient number, since it is larger than the sum of its proper divisors (611056165504).

1222112331002 is an equidigital number, since it uses as much as digits as its factorization.

1222112331002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611056165503.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1222112331002 its reverse (2001332112221), we get a palindrome (3223444443223).

The spelling of 1222112331002 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, three hundred thirty-one thousand, two".