122443521 has 16 divisors (see below), whose sum is σ = 168849408. Its totient is φ = 78843600.

The previous prime is 122443501. The next prime is 122443549. The reversal of 122443521 is 125344221.

It is not a de Polignac number, because 122443521 - 2⁶ = 122443457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122443491 and 122443500.

It is not an unprimeable number, because it can be changed into a prime (122443501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66706 + ... + 68516.

It is an arithmetic number, because the mean of its divisors is an integer number (10553088).

Almost surely, 2^122443521 is an apocalyptic number.

It is an amenable number.

122443521 is a deficient number, since it is larger than the sum of its proper divisors (46405887).

122443521 is a wasteful number, since it uses less digits than its factorization.

122443521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2572.

The product of its digits is 1920, while the sum is 24.

The square root of 122443521 is about 11065.4200552894. The cubic root of 122443521 is about 496.5678560144.

Adding to 122443521 its reverse (125344221), we get a palindrome (247787742).

The spelling of 122443521 in words is "one hundred twenty-two million, four hundred forty-three thousand, five hundred twenty-one".