122211020221111 has 4 divisors (see below), whose sum is σ = 122222385527152. Its totient is φ = 122199654915072.

The previous prime is 122211020220973. The next prime is 122211020221139. The reversal of 122211020221111 is 111122020112221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122211020221111 - 2¹¹ = 122211020219063 is a prime.

It is a super-4 number, since 4×122211020221111⁴ (a number of 57 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211020221141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5682636891 + ... + 5682658396.

It is an arithmetic number, because the mean of its divisors is an integer number (30555596381788).

Almost surely, 2^{122211020221111} is an apocalyptic number.

122211020221111 is a deficient number, since it is larger than the sum of its proper divisors (11365306041).

122211020221111 is a wasteful number, since it uses less digits than its factorization.

122211020221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11365306040.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122211020221111 its reverse (111122020112221), we get a palindrome (233333040333332).

The spelling of 122211020221111 in words is "one hundred twenty-two trillion, two hundred eleven billion, twenty million, two hundred twenty-one thousand, one hundred eleven".