221022221221101 has 16 divisors (see below), whose sum is σ = 316688555784384. Its totient is φ = 136610749549824.

The previous prime is 221022221221063. The next prime is 221022221221127. The reversal of 221022221221101 is 101122122220122.

It is not a de Polignac number, because 221022221221101 - 2⁷ = 221022221220973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022221226101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32341556610 + ... + 32341563443.

It is an arithmetic number, because the mean of its divisors is an integer number (19793034736524).

Almost surely, 2^{221022221221101} is an apocalyptic number.

It is an amenable number.

221022221221101 is a deficient number, since it is larger than the sum of its proper divisors (95666334563283).

221022221221101 is a wasteful number, since it uses less digits than its factorization.

221022221221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64683120140.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221022221221101 its reverse (101122122220122), we get a palindrome (322144343441223).

The spelling of 221022221221101 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred one".