221100001201101 has 32 divisors (see below), whose sum is σ = 342811460966400. Its totient is φ = 125340440359680.

The previous prime is 221100001201033. The next prime is 221100001201103. The reversal of 221100001201101 is 101102100001122.

It is not a de Polignac number, because 221100001201101 - 2³⁸ = 220825123294157 is a prime.

It is a super-2 number, since 2×221100001201101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100001201103) 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, 2231795916 + ... + 2231894981.

It is an arithmetic number, because the mean of its divisors is an integer number (10712858155200).

Almost surely, 2^{221100001201101} is an apocalyptic number.

It is an amenable number.

221100001201101 is a deficient number, since it is larger than the sum of its proper divisors (121711459765299).

221100001201101 is a wasteful number, since it uses less digits than its factorization.

221100001201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463691009.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221100001201101 its reverse (101102100001122), we get a palindrome (322202101202223).

The spelling of 221100001201101 in words is "two hundred twenty-one trillion, one hundred billion, one million, two hundred one thousand, one hundred one".