122002639567 has 2 divisors, whose sum is σ = 122002639568. Its totient is φ = 122002639566.

The previous prime is 122002639537. The next prime is 122002639687. The reversal of 122002639567 is 765936200221.

It is a weak prime.

It is an emirp because it is prime and its reverse (765936200221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122002639567 is a prime.

It is a super-2 number, since 2×122002639567² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122002639537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001319783 + 61001319784.

It is an arithmetic number, because the mean of its divisors is an integer number (61001319784).

Almost surely, 2^122002639567 is an apocalyptic number.

122002639567 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002639567 is an equidigital number, since it uses as much as digits as its factorization.

122002639567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

Adding to 122002639567 its reverse (765936200221), we get a palindrome (887938839788).

The spelling of 122002639567 in words is "one hundred twenty-two billion, two million, six hundred thirty-nine thousand, five hundred sixty-seven".