11221211010 has 64 divisors (see below), whose sum is σ = 27232508160. Its totient is φ = 2958923520.

The previous prime is 11221210981. The next prime is 11221211011. The reversal of 11221211010 is 1011212211.

It is not an unprimeable number, because it can be changed into a prime (11221211011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1765899 + ... + 1772241.

It is an arithmetic number, because the mean of its divisors is an integer number (425507940).

Almost surely, 2^11221211010 is an apocalyptic number.

11221211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221211010 is an abundant number, since it is smaller than the sum of its proper divisors (16011297150).

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

11221211010 is a wasteful number, since it uses less digits than its factorization.

11221211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11221211010 its reverse (1011212211), we get a palindrome (12232423221).

The spelling of 11221211010 in words is "eleven billion, two hundred twenty-one million, two hundred eleven thousand, ten".