221012101101 has 16 divisors (see below), whose sum is σ = 335449198080. Its totient is φ = 128122956720.

The previous prime is 221012101087. The next prime is 221012101103. The reversal of 221012101101 is 101101210122.

It is not a de Polignac number, because 221012101101 - 2²⁵ = 220978546669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012101103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145593511 + ... + 145595028.

It is an arithmetic number, because the mean of its divisors is an integer number (20965574880).

Almost surely, 2^221012101101 is an apocalyptic number.

It is an amenable number.

221012101101 is a deficient number, since it is larger than the sum of its proper divisors (114437096979).

221012101101 is a wasteful number, since it uses less digits than its factorization.

221012101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291188576.

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

Adding to 221012101101 its reverse (101101210122), we get a palindrome (322113311223).

The spelling of 221012101101 in words is "two hundred twenty-one billion, twelve million, one hundred one thousand, one hundred one".