221210112022011 has 24 divisors (see below), whose sum is σ = 365172638265344. Its totient is φ = 126405643350960.

The previous prime is 221210112021937. The next prime is 221210112022021. The reversal of 221210112022011 is 110220211012122.

221210112022011 is a `hidden beast` number, since 2 + 212 + 101 + 120 + 220 + 11 = 666.

It is not a de Polignac number, because 221210112022011 - 2³³ = 221201522087419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221210112022021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114591780 + ... + 116506206.

Almost surely, 2^{221210112022011} is an apocalyptic number.

221210112022011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

221210112022011 is a deficient number, since it is larger than the sum of its proper divisors (143962526243333).

221210112022011 is a wasteful number, since it uses less digits than its factorization.

221210112022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748551 (or 3748548 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221210112022011 its reverse (110220211012122), we get a palindrome (331430323034133).

The spelling of 221210112022011 in words is "two hundred twenty-one trillion, two hundred ten billion, one hundred twelve million, twenty-two thousand, eleven".