122220201111 has 8 divisors (see below), whose sum is σ = 162995114880. Its totient is φ = 81462710712.

The previous prime is 122220201107. The next prime is 122220201119. The reversal of 122220201111 is 111102022221.

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

It is not a de Polignac number, because 122220201111 - 2² = 122220201107 is a prime.

It is a super-2 number, since 2×122220201111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220201119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4339465 + ... + 4367538.

It is an arithmetic number, because the mean of its divisors is an integer number (20374389360).

Almost surely, 2^122220201111 is an apocalyptic number.

122220201111 is a deficient number, since it is larger than the sum of its proper divisors (40774913769).

122220201111 is an equidigital number, since it uses as much as digits as its factorization.

122220201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711685.

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

Adding to 122220201111 its reverse (111102022221), we get a palindrome (233322223332).

The spelling of 122220201111 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred one thousand, one hundred eleven".