111220001202211 has 16 divisors (see below), whose sum is σ = 121761798842880. Its totient is φ = 100750030967520.

The previous prime is 111220001202187. The next prime is 111220001202223. The reversal of 111220001202211 is 112202100022111.

It is a de Polignac number, because none of the positive numbers 2^k-111220001202211 is a prime.

It is a super-2 number, since 2×111220001202211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220001302211) 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, 194710021 + ... + 195280393.

It is an arithmetic number, because the mean of its divisors is an integer number (7610112427680).

Almost surely, 2^{111220001202211} is an apocalyptic number.

111220001202211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111220001202211 is a deficient number, since it is larger than the sum of its proper divisors (10541797640669).

111220001202211 is a wasteful number, since it uses less digits than its factorization.

111220001202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633306.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111220001202211 its reverse (112202100022111), we get a palindrome (223422101224322).

The spelling of 111220001202211 in words is "one hundred eleven trillion, two hundred twenty billion, one million, two hundred two thousand, two hundred eleven".