122020441 has 4 divisors (see below), whose sum is σ = 129198132. Its totient is φ = 114842752.

The previous prime is 122020427. The next prime is 122020447. The reversal of 122020441 is 144020221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144020221 = 131 ⋅1099391.

It can be written as a sum of positive squares in 2 ways, for example, as 65545216 + 56475225 = 8096^2 + 7515^2 .

It is not a de Polignac number, because 122020441 - 2¹⁹ = 121496153 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (122020447) 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, 3588820 + ... + 3588853.

It is an arithmetic number, because the mean of its divisors is an integer number (32299533).

Almost surely, 2^122020441 is an apocalyptic number.

It is an amenable number.

122020441 is a deficient number, since it is larger than the sum of its proper divisors (7177691).

122020441 is an equidigital number, since it uses as much as digits as its factorization.

122020441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7177690.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 122020441 is about 11046.2862990238. The cubic root of 122020441 is about 495.9952644904.

Adding to 122020441 its reverse (144020221), we get a palindrome (266040662).

The spelling of 122020441 in words is "one hundred twenty-two million, twenty thousand, four hundred forty-one".