11111012210 has 8 divisors (see below), whose sum is σ = 19999821996. Its totient is φ = 4444404880.

The previous prime is 11111012191. The next prime is 11111012221. The reversal of 11111012210 is 1221011111.

It can be written as a sum of positive squares in 2 ways, for example, as 11066829601 + 44182609 = 105199^2 + 6647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11111012191 and 11111012200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555550601 + ... + 555550620.

Almost surely, 2^11111012210 is an apocalyptic number.

11111012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111012210 is a deficient number, since it is larger than the sum of its proper divisors (8888809786).

11111012210 is a wasteful number, since it uses less digits than its factorization.

11111012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111101228.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11111012210 its reverse (1221011111), we get a palindrome (12332023321).

The spelling of 11111012210 in words is "eleven billion, one hundred eleven million, twelve thousand, two hundred ten".