122354400221 has 8 divisors (see below), whose sum is σ = 126742080000. Its totient is φ = 117977958000.

The previous prime is 122354400143. The next prime is 122354400227. The reversal of 122354400221 is 122004453221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122354400221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122354400227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2787221 + ... + 2830778.

It is an arithmetic number, because the mean of its divisors is an integer number (15842760000).

Almost surely, 2^122354400221 is an apocalyptic number.

It is an amenable number.

122354400221 is a deficient number, since it is larger than the sum of its proper divisors (4387679779).

122354400221 is an equidigital number, since it uses as much as digits as its factorization.

122354400221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618779.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 122354400221 its reverse (122004453221), we get a palindrome (244358853442).

The spelling of 122354400221 in words is "one hundred twenty-two billion, three hundred fifty-four million, four hundred thousand, two hundred twenty-one".