122010011112221 has 8 divisors (see below), whose sum is σ = 122108650301400. Its totient is φ = 121911379387200.

The previous prime is 122010011112149. The next prime is 122010011112271. The reversal of 122010011112221 is 122211110010221.

It can be written as a sum of positive squares in 4 ways, for example, as 3051484922500 + 118958526189721 = 1746850^2 + 10906811^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122010011112221 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 122010011112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122010011112271) 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, 31074275 + ... + 34779743.

It is an arithmetic number, because the mean of its divisors is an integer number (15263581287675).

Almost surely, 2^{122010011112221} is an apocalyptic number.

It is an amenable number.

122010011112221 is a deficient number, since it is larger than the sum of its proper divisors (98639189179).

122010011112221 is a wasteful number, since it uses less digits than its factorization.

122010011112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732079.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122010011112221 its reverse (122211110010221), we get a palindrome (244221121122442).

The spelling of 122010011112221 in words is "one hundred twenty-two trillion, ten billion, eleven million, one hundred twelve thousand, two hundred twenty-one".