122636223437 has 16 divisors (see below), whose sum is σ = 151123553280. Its totient is φ = 96910860672.

The previous prime is 122636223433. The next prime is 122636223469. The reversal of 122636223437 is 734322636221.

It is a cyclic number.

It is not a de Polignac number, because 122636223437 - 2² = 122636223433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122636223394 and 122636223403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122636223431) 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, 759293 + ... + 906530.

It is an arithmetic number, because the mean of its divisors is an integer number (9445222080).

Almost surely, 2^122636223437 is an apocalyptic number.

It is an amenable number.

122636223437 is a deficient number, since it is larger than the sum of its proper divisors (28487329843).

122636223437 is a wasteful number, since it uses less digits than its factorization.

122636223437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666652.

The product of its digits is 435456, while the sum is 41.

Adding to 122636223437 its reverse (734322636221), we get a palindrome (856958859658).

The spelling of 122636223437 in words is "one hundred twenty-two billion, six hundred thirty-six million, two hundred twenty-three thousand, four hundred thirty-seven".