111220001022201 has 128 divisors (see below), whose sum is σ = 158760801239040. Its totient is φ = 69157778227200.

The previous prime is 111220001022149. The next prime is 111220001022203. The reversal of 111220001022201 is 102220100022111.

It is not a de Polignac number, because 111220001022201 - 2¹⁰ = 111220001021177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220001022203) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 33409430905 + ... + 33409434233.

It is an arithmetic number, because the mean of its divisors is an integer number (1240318759680).

Almost surely, 2^{111220001022201} is an apocalyptic number.

It is an amenable number.

111220001022201 is a deficient number, since it is larger than the sum of its proper divisors (47540800216839).

111220001022201 is a wasteful number, since it uses less digits than its factorization.

111220001022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047.

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

Adding to 111220001022201 its reverse (102220100022111), we get a palindrome (213440101044312).

The spelling of 111220001022201 in words is "one hundred eleven trillion, two hundred twenty billion, one million, twenty-two thousand, two hundred one".