122202507445 has 4 divisors (see below), whose sum is σ = 146643008940. Its totient is φ = 97762005952.

The previous prime is 122202507437. The next prime is 122202507451. The reversal of 122202507445 is 544705202221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544705202221 = 525517 ⋅1036513.

It can be written as a sum of positive squares in 2 ways, for example, as 70234010289 + 51968497156 = 265017^2 + 227966^2 .

It is a cyclic number.

It is not a de Polignac number, because 122202507445 - 2³ = 122202507437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122202507445.

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, 12220250740 + ... + 12220250749.

It is an arithmetic number, because the mean of its divisors is an integer number (36660752235).

Almost surely, 2^122202507445 is an apocalyptic number.

It is an amenable number.

122202507445 is a deficient number, since it is larger than the sum of its proper divisors (24440501495).

122202507445 is an equidigital number, since it uses as much as digits as its factorization.

122202507445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24440501494.

The product of its (nonzero) digits is 44800, while the sum is 34.

Adding to 122202507445 its reverse (544705202221), we get a palindrome (666907709666).

The spelling of 122202507445 in words is "one hundred twenty-two billion, two hundred two million, five hundred seven thousand, four hundred forty-five".