122020010221 has 2 divisors, whose sum is σ = 122020010222. Its totient is φ = 122020010220.

The previous prime is 122020010171. The next prime is 122020010227. The reversal of 122020010221 is 122010020221.

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., 93109809321 + 28910200900 = 305139^2 + 170030^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020010221 - 2¹³ = 122020002029 is a prime.

It is a super-3 number, since 3×122020010221³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122020010227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010005110 + 61010005111.

It is an arithmetic number, because the mean of its divisors is an integer number (61010005111).

Almost surely, 2^122020010221 is an apocalyptic number.

It is an amenable number.

122020010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

122020010221 is an equidigital number, since it uses as much as digits as its factorization.

122020010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122020010221 its reverse (122010020221), we get a palindrome (244030030442).

The spelling of 122020010221 in words is "one hundred twenty-two billion, twenty million, ten thousand, two hundred twenty-one".