120001201122111 has 32 divisors (see below), whose sum is σ = 165532192920000. Its totient is φ = 77267900620800.

The previous prime is 120001201122053. The next prime is 120001201122137. The reversal of 120001201122111 is 111221102100021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-120001201122111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120001201122151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24212965 + ... + 28744913.

It is an arithmetic number, because the mean of its divisors is an integer number (5172881028750).

Almost surely, 2^{120001201122111} is an apocalyptic number.

120001201122111 is a deficient number, since it is larger than the sum of its proper divisors (45530991797889).

120001201122111 is a wasteful number, since it uses less digits than its factorization.

120001201122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4533739.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120001201122111 its reverse (111221102100021), we get a palindrome (231222303222132).

The spelling of 120001201122111 in words is "one hundred twenty trillion, one billion, two hundred one million, one hundred twenty-two thousand, one hundred eleven".