122010120221221 has 4 divisors (see below), whose sum is σ = 122900705040492. Its totient is φ = 121119535401952.

The previous prime is 122010120221191. The next prime is 122010120221233. The reversal of 122010120221221 is 122122021010221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56393866872225 + 65616253348996 = 7509585^2 + 8100386^2 .

It is a cyclic number.

It is not a de Polignac number, because 122010120221221 - 2¹⁷ = 122010120090149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010120221291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445292409430 + ... + 445292409703.

It is an arithmetic number, because the mean of its divisors is an integer number (30725176260123).

Almost surely, 2^{122010120221221} is an apocalyptic number.

It is an amenable number.

122010120221221 is a deficient number, since it is larger than the sum of its proper divisors (890584819271).

122010120221221 is an equidigital number, since it uses as much as digits as its factorization.

122010120221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890584819270.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122010120221221 its reverse (122122021010221), we get a palindrome (244132141231442).

The spelling of 122010120221221 in words is "one hundred twenty-two trillion, ten billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".