121012022213 has 2 divisors, whose sum is σ = 121012022214. Its totient is φ = 121012022212.

The previous prime is 121012022177. The next prime is 121012022231. The reversal of 121012022213 is 312220210121.

Together with next prime (121012022231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61711005889 + 59301016324 = 248417^2 + 243518^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012022213 - 2¹⁶ = 121011956677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121012022191 and 121012022200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121012022293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506011106 + 60506011107.

It is an arithmetic number, because the mean of its divisors is an integer number (60506011107).

Almost surely, 2^121012022213 is an apocalyptic number.

It is an amenable number.

121012022213 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012022213 is an equidigital number, since it uses as much as digits as its factorization.

121012022213 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 17.

Adding to 121012022213 its reverse (312220210121), we get a palindrome (433232232334).

The spelling of 121012022213 in words is "one hundred twenty-one billion, twelve million, twenty-two thousand, two hundred thirteen".