122021204221 has 8 divisors (see below), whose sum is σ = 139495076864. Its totient is φ = 104557899600.

The previous prime is 122021204219. The next prime is 122021204237. The reversal of 122021204221 is 122402120221.

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

It is not a de Polignac number, because 122021204221 - 2¹ = 122021204219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021204021) 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, 2617245 + ... + 2663458.

It is an arithmetic number, because the mean of its divisors is an integer number (17436884608).

Almost surely, 2^122021204221 is an apocalyptic number.

It is an amenable number.

122021204221 is a deficient number, since it is larger than the sum of its proper divisors (17473872643).

122021204221 is an equidigital number, since it uses as much as digits as its factorization.

122021204221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5284011.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122021204221 its reverse (122402120221), we get a palindrome (244423324442).

The spelling of 122021204221 in words is "one hundred twenty-two billion, twenty-one million, two hundred four thousand, two hundred twenty-one".