122000021112221 has 32 divisors (see below), whose sum is σ = 142677327916800. Its totient is φ = 104275424198400.

The previous prime is 122000021112191. The next prime is 122000021112259. The reversal of 122000021112221 is 122211120000221.

It is not a de Polignac number, because 122000021112221 - 2⁶ = 122000021112157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122000021112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000021114221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195726026 + ... + 196348356.

It is an arithmetic number, because the mean of its divisors is an integer number (4458666497400).

Almost surely, 2^{122000021112221} is an apocalyptic number.

It is an amenable number.

122000021112221 is a deficient number, since it is larger than the sum of its proper divisors (20677306804579).

122000021112221 is an equidigital number, since it uses as much as digits as its factorization.

122000021112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623970 (or 623956 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122000021112221 its reverse (122211120000221), we get a palindrome (244211141112442).

The spelling of 122000021112221 in words is "one hundred twenty-two trillion, twenty-one million, one hundred twelve thousand, two hundred twenty-one".