122621066213 has 4 divisors (see below), whose sum is σ = 129074806560. Its totient is φ = 116167325868.

The previous prime is 122621066203. The next prime is 122621066231. The reversal of 122621066213 is 312660126221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122621066213 is a prime.

It is a super-2 number, since 2×122621066213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122621066213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122621066203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226870145 + ... + 3226870182.

It is an arithmetic number, because the mean of its divisors is an integer number (32268701640).

Almost surely, 2^122621066213 is an apocalyptic number.

It is an amenable number.

122621066213 is a deficient number, since it is larger than the sum of its proper divisors (6453740347).

122621066213 is an equidigital number, since it uses as much as digits as its factorization.

122621066213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453740346.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 122621066213 in words is "one hundred twenty-two billion, six hundred twenty-one million, sixty-six thousand, two hundred thirteen".