122010221022121 has 4 divisors (see below), whose sum is σ = 122010441826644. Its totient is φ = 122010000217600.

The previous prime is 122010221022103. The next prime is 122010221022149. The reversal of 122010221022121 is 121220122010221.

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 107882207396496 + 14128013625625 = 10386636^2 + 3758725^2 .

It is a cyclic number.

It is not a de Polignac number, because 122010221022121 - 2⁵ = 122010221022089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122010221022181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109571320 + ... + 110679241.

It is an arithmetic number, because the mean of its divisors is an integer number (30502610456661).

Almost surely, 2^{122010221022121} is an apocalyptic number.

It is an amenable number.

122010221022121 is a deficient number, since it is larger than the sum of its proper divisors (220804523).

122010221022121 is an equidigital number, since it uses as much as digits as its factorization.

122010221022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220804522.

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

Adding to 122010221022121 its reverse (121220122010221), we get a palindrome (243230343032342).

The spelling of 122010221022121 in words is "one hundred twenty-two trillion, ten billion, two hundred twenty-one million, twenty-two thousand, one hundred twenty-one".