11211220211110 has 16 divisors (see below), whose sum is σ = 21367266755616. Its totient is φ = 4220694667648.

The previous prime is 11211220211101. The next prime is 11211220211129. The reversal of 11211220211110 is 1111202211211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32974176922 + ... + 32974177261.

It is an arithmetic number, because the mean of its divisors is an integer number (1335454172226).

Almost surely, 2^{11211220211110} is an apocalyptic number.

11211220211110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211220211110 is a deficient number, since it is larger than the sum of its proper divisors (10156046544506).

11211220211110 is a wasteful number, since it uses less digits than its factorization.

11211220211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65948354207.

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

Adding to 11211220211110 its reverse (1111202211211), we get a palindrome (12322422422321).

The spelling of 11211220211110 in words is "eleven trillion, two hundred eleven billion, two hundred twenty million, two hundred eleven thousand, one hundred ten".