122040215221 has 8 divisors (see below), whose sum is σ = 122114093184. Its totient is φ = 121966367040.

The previous prime is 122040215189. The next prime is 122040215293. The reversal of 122040215221 is 122512040221.

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

It is a cyclic number.

It is not a de Polignac number, because 122040215221 - 2⁵ = 122040215189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122040215192 and 122040215201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122040215021) 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, 23616580 + ... + 23621746.

It is an arithmetic number, because the mean of its divisors is an integer number (15264261648).

Almost surely, 2^122040215221 is an apocalyptic number.

It is an amenable number.

122040215221 is a deficient number, since it is larger than the sum of its proper divisors (73877963).

122040215221 is an equidigital number, since it uses as much as digits as its factorization.

122040215221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14891.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 122040215221 its reverse (122512040221), we get a palindrome (244552255442).

The spelling of 122040215221 in words is "one hundred twenty-two billion, forty million, two hundred fifteen thousand, two hundred twenty-one".