122201210011111 has 16 divisors (see below), whose sum is σ = 152355042293760. Its totient is φ = 95221542739680.

The previous prime is 122201210011109. The next prime is 122201210011141. The reversal of 122201210011111 is 111110012102221.

It is not a de Polignac number, because 122201210011111 - 2¹ = 122201210011109 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 (122201210011141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52011210 + ... + 54309928.

It is an arithmetic number, because the mean of its divisors is an integer number (9522190143360).

Almost surely, 2^{122201210011111} is an apocalyptic number.

122201210011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122201210011111 is a deficient number, since it is larger than the sum of its proper divisors (30153832282649).

122201210011111 is a wasteful number, since it uses less digits than its factorization.

122201210011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989134.

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

Adding to 122201210011111 its reverse (111110012102221), we get a palindrome (233311222113332).

The spelling of 122201210011111 in words is "one hundred twenty-two trillion, two hundred one billion, two hundred ten million, eleven thousand, one hundred eleven".