11111112210210 has 16 divisors (see below), whose sum is σ = 26666669304576. Its totient is φ = 2962963256048.

The previous prime is 11111112210199. The next prime is 11111112210217. The reversal of 11111112210210 is 1201221111111.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11111112210210.

It is not an unprimeable number, because it can be changed into a prime (11111112210217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185185203474 + ... + 185185203533.

It is an arithmetic number, because the mean of its divisors is an integer number (1666666831536).

Almost surely, 2^{11111112210210} is an apocalyptic number.

11111112210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111112210210 is an abundant number, since it is smaller than the sum of its proper divisors (15555557094366).

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

11111112210210 is a wasteful number, since it uses less digits than its factorization.

11111112210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370370407017.

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

Adding to 11111112210210 its reverse (1201221111111), we get a palindrome (12312333321321).

The spelling of 11111112210210 in words is "eleven trillion, one hundred eleven billion, one hundred twelve million, two hundred ten thousand, two hundred ten".