122120522510221 has 8 divisors (see below), whose sum is σ = 127463938545024. Its totient is φ = 116779925483760.

The previous prime is 122120522510201. The next prime is 122120522510257. The reversal of 122120522510221 is 122015225021221.

It is a happy number.

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 122120522510221 - 2⁹ = 122120522509709 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 122120522510221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120522510201) 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, 704663550 + ... + 704836831.

It is an arithmetic number, because the mean of its divisors is an integer number (15932992318128).

Almost surely, 2^{122120522510221} is an apocalyptic number.

It is an amenable number.

122120522510221 is a deficient number, since it is larger than the sum of its proper divisors (5343416034803).

122120522510221 is a wasteful number, since it uses less digits than its factorization.

122120522510221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409504171.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 122120522510221 its reverse (122015225021221), we get a palindrome (244135747531442).

The spelling of 122120522510221 in words is "one hundred twenty-two trillion, one hundred twenty billion, five hundred twenty-two million, five hundred ten thousand, two hundred twenty-one".