122066206357 has 4 divisors (see below), whose sum is σ = 124369342380. Its totient is φ = 119763070336.

The previous prime is 122066206319. The next prime is 122066206373. The reversal of 122066206357 is 753602660221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753602660221 = 1613 ⋅467205617.

It can be written as a sum of positive squares in 2 ways, for example, as 68230141681 + 53836064676 = 261209^2 + 232026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122066206357 is a prime.

It is a super-2 number, since 2×122066206357² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122066206307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151567932 + ... + 1151568037.

It is an arithmetic number, because the mean of its divisors is an integer number (31092335595).

Almost surely, 2^122066206357 is an apocalyptic number.

It is an amenable number.

122066206357 is a deficient number, since it is larger than the sum of its proper divisors (2303136023).

122066206357 is an equidigital number, since it uses as much as digits as its factorization.

122066206357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303136022.

The product of its (nonzero) digits is 181440, while the sum is 40.

Adding to 122066206357 its reverse (753602660221), we get a palindrome (875668866578).

The spelling of 122066206357 in words is "one hundred twenty-two billion, sixty-six million, two hundred six thousand, three hundred fifty-seven".