221020022332011 has 32 divisors (see below), whose sum is σ = 337298838658560. Its totient is φ = 126107366052096.

The previous prime is 221020022332001. The next prime is 221020022332049. The reversal of 221020022332011 is 110233220020122.

It is not a de Polignac number, because 221020022332011 - 2⁹ = 221020022331499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (221020022332001) 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, 42003135 + ... + 46971303.

It is an arithmetic number, because the mean of its divisors is an integer number (10540588708080).

Almost surely, 2^{221020022332011} is an apocalyptic number.

221020022332011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

221020022332011 is a deficient number, since it is larger than the sum of its proper divisors (116278816326549).

221020022332011 is a wasteful number, since it uses less digits than its factorization.

221020022332011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971363.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221020022332011 its reverse (110233220020122), we get a palindrome (331253242352133).

The spelling of 221020022332011 in words is "two hundred twenty-one trillion, twenty billion, twenty-two million, three hundred thirty-two thousand, eleven".