1221202302007 has 2 divisors, whose sum is σ = 1221202302008. Its totient is φ = 1221202302006.

The previous prime is 1221202301923. The next prime is 1221202302013. The reversal of 1221202302007 is 7002032021221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1221202302007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221202302907) 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, 610601151003 + 610601151004.

It is an arithmetic number, because the mean of its divisors is an integer number (610601151004).

Almost surely, 2^{1221202302007} is an apocalyptic number.

1221202302007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221202302007 is an equidigital number, since it uses as much as digits as its factorization.

1221202302007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 1221202302007 its reverse (7002032021221), we get a palindrome (8223234323228).

The spelling of 1221202302007 in words is "one trillion, two hundred twenty-one billion, two hundred two million, three hundred two thousand, seven".