122020321 has 4 divisors (see below), whose sum is σ = 122069700. Its totient is φ = 121970944.

The previous prime is 122020307. The next prime is 122020351. The reversal of 122020321 is 123020221.

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 41667025 + 80353296 = 6455^2 + 8964^2 .

It is a cyclic number.

It is not a de Polignac number, because 122020321 - 2⁷ = 122020193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122020351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20776 + ... + 25993.

It is an arithmetic number, because the mean of its divisors is an integer number (30517425).

Almost surely, 2^122020321 is an apocalyptic number.

It is an amenable number.

122020321 is a deficient number, since it is larger than the sum of its proper divisors (49379).

122020321 is an equidigital number, since it uses as much as digits as its factorization.

122020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49378.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 122020321 is about 11046.2808673327. The cubic root of 122020321 is about 495.9951018962.

Adding to 122020321 its reverse (123020221), we get a palindrome (245040542).

The spelling of 122020321 in words is "one hundred twenty-two million, twenty thousand, three hundred twenty-one".