121211102110073 has 2 divisors, whose sum is σ = 121211102110074. Its totient is φ = 121211102110072.

The previous prime is 121211102110001. The next prime is 121211102110193. The reversal of 121211102110073 is 370011201112121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95063046000784 + 26148056109289 = 9750028^2 + 5113517^2 .

It is a cyclic number.

It is not a de Polignac number, because 121211102110073 - 2¹⁴ = 121211102093689 is a prime.

It is not a weakly prime, because it can be changed into another prime (121211102119073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605551055036 + 60605551055037.

It is an arithmetic number, because the mean of its divisors is an integer number (60605551055037).

Almost surely, 2^{121211102110073} is an apocalyptic number.

It is an amenable number.

121211102110073 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211102110073 is an equidigital number, since it uses as much as digits as its factorization.

121211102110073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 23.

Adding to 121211102110073 its reverse (370011201112121), we get a palindrome (491222303222194).

The spelling of 121211102110073 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred two million, one hundred ten thousand, seventy-three".