122625021445 has 4 divisors (see below), whose sum is σ = 147150025740. Its totient is φ = 98100017152.

The previous prime is 122625021439. The next prime is 122625021487. The reversal of 122625021445 is 544120526221.

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 86244418276 + 36380603169 = 293674^2 + 190737^2 .

It is a cyclic number.

It is not a de Polignac number, because 122625021445 - 2¹³ = 122625013253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122625021445.

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, 12262502140 + ... + 12262502149.

It is an arithmetic number, because the mean of its divisors is an integer number (36787506435).

Almost surely, 2^122625021445 is an apocalyptic number.

It is an amenable number.

122625021445 is a deficient number, since it is larger than the sum of its proper divisors (24525004295).

122625021445 is an equidigital number, since it uses as much as digits as its factorization.

122625021445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24525004294.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 122625021445 its reverse (544120526221), we get a palindrome (666745547666).

The spelling of 122625021445 in words is "one hundred twenty-two billion, six hundred twenty-five million, twenty-one thousand, four hundred forty-five".