122123320001 has 4 divisors (see below), whose sum is σ = 125101937604. Its totient is φ = 119144702400.

The previous prime is 122123319991. The next prime is 122123320009. The reversal of 122123320001 is 100023321221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49990252225 + 72133067776 = 223585^2 + 268576^2 .

It is a cyclic number.

It is not a de Polignac number, because 122123320001 - 2²² = 122119125697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122123320009) 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, 1489308740 + ... + 1489308821.

It is an arithmetic number, because the mean of its divisors is an integer number (31275484401).

Almost surely, 2^122123320001 is an apocalyptic number.

It is an amenable number.

122123320001 is a deficient number, since it is larger than the sum of its proper divisors (2978617603).

122123320001 is an equidigital number, since it uses as much as digits as its factorization.

122123320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978617602.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 122123320001 its reverse (100023321221), we get a palindrome (222146641222).

The spelling of 122123320001 in words is "one hundred twenty-two billion, one hundred twenty-three million, three hundred twenty thousand, one".