11212222210 has 32 divisors (see below), whose sum is σ = 23143905792. Its totient is φ = 3831063360.

The previous prime is 11212222207. The next prime is 11212222243. The reversal of 11212222210 is 1222221211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252826 + ... + 293845.

It is an arithmetic number, because the mean of its divisors is an integer number (723247056).

Almost surely, 2^11212222210 is an apocalyptic number.

11212222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212222210 is an abundant number, since it is smaller than the sum of its proper divisors (11931683582).

11212222210 is a wasteful number, since it uses less digits than its factorization.

11212222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546978.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11212222210 its reverse (1222221211), we get a palindrome (12434443421).

Subtracting from 11212222210 its reverse (1222221211), we obtain a palindrome (9990000999).

The spelling of 11212222210 in words is "eleven billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".