122621440506 has 8 divisors (see below), whose sum is σ = 245242881024. Its totient is φ = 40873813500.

The previous prime is 122621440463. The next prime is 122621440537. The reversal of 122621440506 is 605044126221.

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

122621440506 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10218453370 + ... + 10218453381.

It is an arithmetic number, because the mean of its divisors is an integer number (30655360128).

Almost surely, 2^122621440506 is an apocalyptic number.

122621440506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122621440506 is a wasteful number, since it uses less digits than its factorization.

122621440506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20436906756.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 122621440506 its reverse (605044126221), we get a palindrome (727665566727).

The spelling of 122621440506 in words is "one hundred twenty-two billion, six hundred twenty-one million, four hundred forty thousand, five hundred six".