121001110213 has 2 divisors, whose sum is σ = 121001110214. Its totient is φ = 121001110212.

The previous prime is 121001110151. The next prime is 121001110247. The reversal of 121001110213 is 312011100121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115367556964 + 5633553249 = 339658^2 + 75057^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001110213 - 2⁹ = 121001109701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121001110193 and 121001110202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121001140213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500555106 + 60500555107.

It is an arithmetic number, because the mean of its divisors is an integer number (60500555107).

Almost surely, 2^121001110213 is an apocalyptic number.

It is an amenable number.

121001110213 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001110213 is an equidigital number, since it uses as much as digits as its factorization.

121001110213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 121001110213 its reverse (312011100121), we get a palindrome (433012210334).

The spelling of 121001110213 in words is "one hundred twenty-one billion, one million, one hundred ten thousand, two hundred thirteen".