111211111002210 has 16 divisors (see below), whose sum is σ = 266906666405376. Its totient is φ = 29656296267248.

The previous prime is 111211111002139. The next prime is 111211111002281. The reversal of 111211111002210 is 12200111112111.

It is an interprime number because it is at equal distance from previous prime (111211111002139) and next prime (111211111002281).

It is a super-2 number, since 2×111211111002210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111211111002210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1853518516674 + ... + 1853518516733.

It is an arithmetic number, because the mean of its divisors is an integer number (16681666650336).

Almost surely, 2^{111211111002210} is an apocalyptic number.

111211111002210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111211111002210 is an abundant number, since it is smaller than the sum of its proper divisors (155695555403166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111211111002210 is a wasteful number, since it uses less digits than its factorization.

111211111002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707037033417.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111211111002210 its reverse (12200111112111), we get a palindrome (123411222114321).

The spelling of 111211111002210 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred eleven million, two thousand, two hundred ten".