122143321111 has 32 divisors (see below), whose sum is σ = 147588480000. Its totient is φ = 100922574816.

The previous prime is 122143321099. The next prime is 122143321121. The reversal of 122143321111 is 111123341221.

It is not a de Polignac number, because 122143321111 - 2⁷ = 122143320983 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 (122143321121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6426220 + ... + 6445198.

It is an arithmetic number, because the mean of its divisors is an integer number (4612140000).

Almost surely, 2^122143321111 is an apocalyptic number.

122143321111 is a deficient number, since it is larger than the sum of its proper divisors (25445158889).

122143321111 is an equidigital number, since it uses as much as digits as its factorization.

122143321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19676 (or 19662 counting only the distinct ones).

The product of its digits is 288, while the sum is 22.

Adding to 122143321111 its reverse (111123341221), we get a palindrome (233266662332).

The spelling of 122143321111 in words is "one hundred twenty-two billion, one hundred forty-three million, three hundred twenty-one thousand, one hundred eleven".