122220210111 has 8 divisors (see below), whose sum is σ = 163158773424. Its totient is φ = 81380893440.

The previous prime is 122220210109. The next prime is 122220210121. The reversal of 122220210111 is 111012022221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122220210111 - 2¹ = 122220210109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220210121) 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 7 ways as a sum of consecutive naturals, for example, 24808786 + ... + 24813711.

It is an arithmetic number, because the mean of its divisors is an integer number (20394846678).

Almost surely, 2^122220210111 is an apocalyptic number.

122220210111 is a deficient number, since it is larger than the sum of its proper divisors (40938563313).

122220210111 is an equidigital number, since it uses as much as digits as its factorization.

122220210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49623321.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122220210111 its reverse (111012022221), we get a palindrome (233232232332).

The spelling of 122220210111 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred ten thousand, one hundred eleven".