221332102101 has 16 divisors (see below), whose sum is σ = 357708448320. Its totient is φ = 134140667760.

The previous prime is 221332102087. The next prime is 221332102109. The reversal of 221332102101 is 101201233122.

221332102101 is a `hidden beast` number, since 221 + 332 + 10 + 2 + 101 = 666.

It is not a de Polignac number, because 221332102101 - 2¹⁵ = 221332069333 is a prime.

It is a super-2 number, since 2×221332102101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221332102109) 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, 372612670 + ... + 372613263.

It is an arithmetic number, because the mean of its divisors is an integer number (22356778020).

Almost surely, 2^221332102101 is an apocalyptic number.

It is an amenable number.

221332102101 is a deficient number, since it is larger than the sum of its proper divisors (136376346219).

221332102101 is a wasteful number, since it uses less digits than its factorization.

221332102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745225953 (or 745225947 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221332102101 its reverse (101201233122), we get a palindrome (322533335223).

The spelling of 221332102101 in words is "two hundred twenty-one billion, three hundred thirty-two million, one hundred two thousand, one hundred one".