122212101220221 has 8 divisors (see below), whose sum is σ = 162949955091840. Its totient is φ = 81474490747712.

The previous prime is 122212101220211. The next prime is 122212101220229. The reversal of 122212101220221 is 122022101212221.

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 122212101220221 - 2⁵ = 122212101220189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212101220229) 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, 59674956 + ... + 61688933.

It is an arithmetic number, because the mean of its divisors is an integer number (20368744386480).

Almost surely, 2^{122212101220221} is an apocalyptic number.

It is an amenable number.

122212101220221 is a deficient number, since it is larger than the sum of its proper divisors (40737853871619).

122212101220221 is a wasteful number, since it uses less digits than its factorization.

122212101220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121699555.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122212101220221 its reverse (122022101212221), we get a palindrome (244234202432442).

The spelling of 122212101220221 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred one million, two hundred twenty thousand, two hundred twenty-one".