122211002122221 has 16 divisors (see below), whose sum is σ = 164819237492736. Its totient is φ = 80542149144576.

The previous prime is 122211002122219. The next prime is 122211002122241. The reversal of 122211002122221 is 122221200112221.

It is not a de Polignac number, because 122211002122221 - 2¹ = 122211002122219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211002122241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470502580 + ... + 470762253.

It is an arithmetic number, because the mean of its divisors is an integer number (10301202343296).

Almost surely, 2^{122211002122221} is an apocalyptic number.

It is an amenable number.

122211002122221 is a deficient number, since it is larger than the sum of its proper divisors (42608235370515).

122211002122221 is a wasteful number, since it uses less digits than its factorization.

122211002122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941265332.

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

Adding to 122211002122221 its reverse (122221200112221), we get a palindrome (244432202234442).

The spelling of 122211002122221 in words is "one hundred twenty-two trillion, two hundred eleven billion, two million, one hundred twenty-two thousand, two hundred twenty-one".