121221002211007 has 2 divisors, whose sum is σ = 121221002211008. Its totient is φ = 121221002211006.

The previous prime is 121221002210989. The next prime is 121221002211073. The reversal of 121221002211007 is 700112200122121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121221002211007 - 2¹⁵ = 121221002178239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121221002211097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610501105503 + 60610501105504.

It is an arithmetic number, because the mean of its divisors is an integer number (60610501105504).

Almost surely, 2^{121221002211007} is an apocalyptic number.

121221002211007 is a deficient number, since it is larger than the sum of its proper divisors (1).

121221002211007 is an equidigital number, since it uses as much as digits as its factorization.

121221002211007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 121221002211007 its reverse (700112200122121), we get a palindrome (821333202333128).

The spelling of 121221002211007 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two million, two hundred eleven thousand, seven".