121111102022213 has 2 divisors, whose sum is σ = 121111102022214. Its totient is φ = 121111102022212.

The previous prime is 121111102022179. The next prime is 121111102022219. The reversal of 121111102022213 is 312220201111121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66383923502689 + 54727178519524 = 8147633^2 + 7397782^2 .

It is a cyclic number.

It is not a de Polignac number, because 121111102022213 - 2⁴² = 116713055511109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121111102022219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555551011106 + 60555551011107.

It is an arithmetic number, because the mean of its divisors is an integer number (60555551011107).

Almost surely, 2^{121111102022213} is an apocalyptic number.

It is an amenable number.

121111102022213 is a deficient number, since it is larger than the sum of its proper divisors (1).

121111102022213 is an equidigital number, since it uses as much as digits as its factorization.

121111102022213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121111102022213 its reverse (312220201111121), we get a palindrome (433331303133334).

The spelling of 121111102022213 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred two million, twenty-two thousand, two hundred thirteen".