122236445 has 4 divisors (see below), whose sum is σ = 146683740. Its totient is φ = 97789152.

The previous prime is 122236423. The next prime is 122236451. The reversal of 122236445 is 544632221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544632221 = 7 ⋅77804603.

It can be written as a sum of positive squares in 2 ways, for example, as 86750596 + 35485849 = 9314^2 + 5957^2 .

It is a cyclic number.

It is not a de Polignac number, because 122236445 - 2⁶ = 122236381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12223640 + ... + 12223649.

It is an arithmetic number, because the mean of its divisors is an integer number (36670935).

Almost surely, 2^122236445 is an apocalyptic number.

It is an amenable number.

122236445 is a deficient number, since it is larger than the sum of its proper divisors (24447295).

122236445 is an equidigital number, since it uses as much as digits as its factorization.

122236445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24447294.

The product of its digits is 11520, while the sum is 29.

The square root of 122236445 is about 11056.0591984667. The cubic root of 122236445 is about 496.2877668597.

Adding to 122236445 its reverse (544632221), we get a palindrome (666868666).

The spelling of 122236445 in words is "one hundred twenty-two million, two hundred thirty-six thousand, four hundred forty-five".