220201111212111 has 12 divisors (see below), whose sum is σ = 321156313225488. Its totient is φ = 145375490896704.

The previous prime is 220201111212101. The next prime is 220201111212119. The reversal of 220201111212111 is 111212111102022.

It is a happy number.

220201111212111 is a `hidden beast` number, since 220 + 2 + 0 + 111 + 121 + 211 + 1 = 666.

It is not a de Polignac number, because 220201111212111 - 2³⁵ = 220166751473743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201111212119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118770824970 + ... + 118770826823.

It is an arithmetic number, because the mean of its divisors is an integer number (26763026102124).

Almost surely, 2^{220201111212111} is an apocalyptic number.

220201111212111 is a deficient number, since it is larger than the sum of its proper divisors (100955202013377).

220201111212111 is a wasteful number, since it uses less digits than its factorization.

220201111212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237541651902 (or 237541651899 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 220201111212111 its reverse (111212111102022), we get a palindrome (331413222314133).

The spelling of 220201111212111 in words is "two hundred twenty trillion, two hundred one billion, one hundred eleven million, two hundred twelve thousand, one hundred eleven".