11211222220210 has 32 divisors (see below), whose sum is σ = 20204066027520. Its totient is φ = 4479188374848.

The previous prime is 11211222220189. The next prime is 11211222220241. The reversal of 11211222220210 is 1202222211211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29497744 + ... + 29875396.

It is an arithmetic number, because the mean of its divisors is an integer number (631377063360).

Almost surely, 2^{11211222220210} is an apocalyptic number.

11211222220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211222220210 is a deficient number, since it is larger than the sum of its proper divisors (8992843807310).

11211222220210 is a wasteful number, since it uses less digits than its factorization.

11211222220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381162.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11211222220210 its reverse (1202222211211), we get a palindrome (12413444431421).

The spelling of 11211222220210 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, two hundred twenty thousand, two hundred ten".