122345202221111 has 6 divisors (see below), whose sum is σ = 123171821780112. Its totient is φ = 121524093459320.

The previous prime is 122345202221101. The next prime is 122345202221113. The reversal of 122345202221111 is 111122202543221.

It is a happy number.

It is not a de Polignac number, because 122345202221111 - 2²⁶ = 122345135112247 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 (122345202221113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2755376255 + ... + 2755420656.

It is an arithmetic number, because the mean of its divisors is an integer number (20528636963352).

Almost surely, 2^{122345202221111} is an apocalyptic number.

122345202221111 is a deficient number, since it is larger than the sum of its proper divisors (826619559001).

122345202221111 is an frugal number, since it uses more digits than its factorization.

122345202221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5510797209 (or 5510797060 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 122345202221111 its reverse (111122202543221), we get a palindrome (233467404764332).

The spelling of 122345202221111 in words is "one hundred twenty-two trillion, three hundred forty-five billion, two hundred two million, two hundred twenty-one thousand, one hundred eleven".