121001120220949 has 2 divisors, whose sum is σ = 121001120220950. Its totient is φ = 121001120220948.

The previous prime is 121001120220947. The next prime is 121001120221117. The reversal of 121001120220949 is 949022021100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64682369226225 + 56318750994724 = 8042535^2 + 7504582^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001120220949 - 2¹ = 121001120220947 is a prime.

Together with 121001120220947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121001120220947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500560110474 + 60500560110475.

It is an arithmetic number, because the mean of its divisors is an integer number (60500560110475).

Almost surely, 2^{121001120220949} is an apocalyptic number.

It is an amenable number.

121001120220949 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001120220949 is an equidigital number, since it uses as much as digits as its factorization.

121001120220949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 121001120220949 in words is "one hundred twenty-one trillion, one billion, one hundred twenty million, two hundred twenty thousand, nine hundred forty-nine".