122638247345 has 16 divisors (see below), whose sum is σ = 152518464000. Its totient is φ = 94567440000.

The previous prime is 122638247293. The next prime is 122638247351. The reversal of 122638247345 is 543742836221.

It is not a de Polignac number, because 122638247345 - 2¹⁸ = 122637985201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122638247345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537220 + ... + 1615029.

It is an arithmetic number, because the mean of its divisors is an integer number (9532404000).

Almost surely, 2^122638247345 is an apocalyptic number.

It is an amenable number.

122638247345 is a deficient number, since it is larger than the sum of its proper divisors (29880216655).

122638247345 is a wasteful number, since it uses less digits than its factorization.

122638247345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152536.

The product of its digits is 1935360, while the sum is 47.

The spelling of 122638247345 in words is "one hundred twenty-two billion, six hundred thirty-eight million, two hundred forty-seven thousand, three hundred forty-five".