221101220022011 has 32 divisors (see below), whose sum is σ = 261827441971200. Its totient is φ = 182681630651520.

The previous prime is 221101220021971. The next prime is 221101220022037. The reversal of 221101220022011 is 110220022101122.

It is not a de Polignac number, because 221101220022011 - 2⁶ = 221101220021947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221101220022071) 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, 373045046 + ... + 373637268.

It is an arithmetic number, because the mean of its divisors is an integer number (8182107561600).

Almost surely, 2^{221101220022011} is an apocalyptic number.

221101220022011 is a deficient number, since it is larger than the sum of its proper divisors (40726221949189).

221101220022011 is a wasteful number, since it uses less digits than its factorization.

221101220022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595259.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221101220022011 its reverse (110220022101122), we get a palindrome (331321242123133).

The spelling of 221101220022011 in words is "two hundred twenty-one trillion, one hundred one billion, two hundred twenty million, twenty-two thousand, eleven".