122220202111 has 24 divisors (see below), whose sum is σ = 143647986384. Its totient is φ = 103675420800.

The previous prime is 122220202103. The next prime is 122220202121. The reversal of 122220202111 is 111202022221.

It is a happy number.

It is not a de Polignac number, because 122220202111 - 2³ = 122220202103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220202121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14610216 + ... + 14618578.

It is an arithmetic number, because the mean of its divisors is an integer number (5985332766).

Almost surely, 2^122220202111 is an apocalyptic number.

122220202111 is a deficient number, since it is larger than the sum of its proper divisors (21427784273).

122220202111 is a wasteful number, since it uses less digits than its factorization.

122220202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431 (or 11424 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122220202111 its reverse (111202022221), we get a palindrome (233422224332).

The spelling of 122220202111 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred two thousand, one hundred eleven".