111220022001 has 16 divisors (see below), whose sum is σ = 161820822528. Its totient is φ = 67386805200.

The previous prime is 111220021963. The next prime is 111220022027. The reversal of 111220022001 is 100220022111.

It is not a de Polignac number, because 111220022001 - 2⁷ = 111220021873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220022401) 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, 364101 + ... + 595826.

It is an arithmetic number, because the mean of its divisors is an integer number (10113801408).

Almost surely, 2^111220022001 is an apocalyptic number.

111220022001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111220022001 is a deficient number, since it is larger than the sum of its proper divisors (50600800527).

111220022001 is a wasteful number, since it uses less digits than its factorization.

111220022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963452.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111220022001 its reverse (100220022111), we get a palindrome (211440044112).

The spelling of 111220022001 in words is "one hundred eleven billion, two hundred twenty million, twenty-two thousand, one".