11121112210 has 16 divisors (see below), whose sum is σ = 21557848536. Its totient is φ = 4106256768.

The previous prime is 11121112157. The next prime is 11121112253. The reversal of 11121112210 is 1221112111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10151973049 + 969139161 = 100757^2 + 31131^2 .

It is a super-2 number, since 2×11121112210² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42773379 + ... + 42773638.

Almost surely, 2^11121112210 is an apocalyptic number.

11121112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121112210 is a deficient number, since it is larger than the sum of its proper divisors (10436736326).

11121112210 is a wasteful number, since it uses less digits than its factorization.

11121112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85547037.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11121112210 its reverse (1221112111), we get a palindrome (12342224321).

Subtracting from 11121112210 its reverse (1221112111), we obtain a palindrome (9900000099).

The spelling of 11121112210 in words is "eleven billion, one hundred twenty-one million, one hundred twelve thousand, two hundred ten".