11211011223210 has 48 divisors (see below), whose sum is σ = 29936429977896. Its totient is φ = 2908802911104.

The previous prime is 11211011223197. The next prime is 11211011223253. The reversal of 11211011223210 is 1232211011211.

It is a happy number.

11211011223210 is a `hidden beast` number, since 1 + 121 + 101 + 122 + 321 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10666840916169 + 544170307041 = 3266013^2 + 737679^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1683331689 + ... + 1683338348.

Almost surely, 2^{11211011223210} is an apocalyptic number.

11211011223210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211011223210 is an abundant number, since it is smaller than the sum of its proper divisors (18725418754686).

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

11211011223210 is a wasteful number, since it uses less digits than its factorization.

11211011223210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366670087 (or 3366670084 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 11211011223210 its reverse (1232211011211), we get a palindrome (12443222234421).

The spelling of 11211011223210 in words is "eleven trillion, two hundred eleven billion, eleven million, two hundred twenty-three thousand, two hundred ten".