221211102101 has 8 divisors (see below), whose sum is σ = 241508433600. Its totient is φ = 200944975840.

The previous prime is 221211102061. The next prime is 221211102113. The reversal of 221211102101 is 101201112122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221211102101 - 2¹⁰ = 221211101077 is a prime.

It is a super-2 number, since 2×221211102101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211102121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7786481 + ... + 7814838.

It is an arithmetic number, because the mean of its divisors is an integer number (30188554200).

Almost surely, 2^221211102101 is an apocalyptic number.

It is an amenable number.

221211102101 is a deficient number, since it is larger than the sum of its proper divisors (20297331499).

221211102101 is a wasteful number, since it uses less digits than its factorization.

221211102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15602619.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221211102101 its reverse (101201112122), we get a palindrome (322412214223).

The spelling of 221211102101 in words is "two hundred twenty-one billion, two hundred eleven million, one hundred two thousand, one hundred one".