221021222101101 has 96 divisors (see below), whose sum is σ = 346745393519616. Its totient is φ = 135343965312000.

The previous prime is 221021222101091. The next prime is 221021222101111. The reversal of 221021222101101 is 101101222120122.

221021222101101 is a `hidden beast` number, since 221 + 0 + 2 + 122 + 210 + 110 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (221021222101091) and next prime (221021222101111).

It is not a de Polignac number, because 221021222101101 - 2¹¹ = 221021222099053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221021222101111) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6851018311 + ... + 6851050571.

It is an arithmetic number, because the mean of its divisors is an integer number (3611931182496).

Almost surely, 2^{221021222101101} is an apocalyptic number.

It is an amenable number.

221021222101101 is a deficient number, since it is larger than the sum of its proper divisors (125724171418515).

221021222101101 is a wasteful number, since it uses less digits than its factorization.

221021222101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48563 (or 48560 counting only the distinct ones).

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

Adding to 221021222101101 its reverse (101101222120122), we get a palindrome (322122444221223).

The spelling of 221021222101101 in words is "two hundred twenty-one trillion, twenty-one billion, two hundred twenty-two million, one hundred one thousand, one hundred one".