111220001211310 has 64 divisors (see below), whose sum is σ = 215112010132800. Its totient is φ = 41255149381632.

The previous prime is 111220001211307. The next prime is 111220001211313. The reversal of 111220001211310 is 13112100022111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111220001211307) and next prime (111220001211313).

It is a super-2 number, since 2×111220001211310² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220001211313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13448937 + ... + 20082676.

It is an arithmetic number, because the mean of its divisors is an integer number (3361125158325).

Almost surely, 2^{111220001211310} is an apocalyptic number.

111220001211310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220001211310 is a deficient number, since it is larger than the sum of its proper divisors (103892008921490).

111220001211310 is a wasteful number, since it uses less digits than its factorization.

111220001211310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33531925.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111220001211310 its reverse (13112100022111), we get a palindrome (124332101233421).

The spelling of 111220001211310 in words is "one hundred eleven trillion, two hundred twenty billion, one million, two hundred eleven thousand, three hundred ten".