122110200212221 has 8 divisors (see below), whose sum is σ = 131503378739544. Its totient is φ = 112717033999680.

The previous prime is 122110200212219. The next prime is 122110200212347. The reversal of 122110200212221 is 122212002011221.

It can be written as a sum of positive squares in 4 ways, for example, as 1804642956900 + 120305557255321 = 1343370^2 + 10968389^2 .

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 122110200212221 - 2¹ = 122110200212219 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 (122110200210221) 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, 34542315 + ... + 37912951.

It is an arithmetic number, because the mean of its divisors is an integer number (16437922342443).

Almost surely, 2^{122110200212221} is an apocalyptic number.

It is an amenable number.

122110200212221 is a deficient number, since it is larger than the sum of its proper divisors (9393178527323).

122110200212221 is a wasteful number, since it uses less digits than its factorization.

122110200212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157391.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122110200212221 its reverse (122212002011221), we get a palindrome (244322202223442).

The spelling of 122110200212221 in words is "one hundred twenty-two trillion, one hundred ten billion, two hundred million, two hundred twelve thousand, two hundred twenty-one".