221210112200101 has 4 divisors (see below), whose sum is σ = 228345922271104. Its totient is φ = 214074302129100.

The previous prime is 221210112200069. The next prime is 221210112200153. The reversal of 221210112200101 is 101002211012122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221210112200101 - 2⁵ = 221210112200069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221210112200401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3567905035455 + ... + 3567905035516.

It is an arithmetic number, because the mean of its divisors is an integer number (57086480567776).

Almost surely, 2^{221210112200101} is an apocalyptic number.

It is an amenable number.

221210112200101 is a deficient number, since it is larger than the sum of its proper divisors (7135810071003).

221210112200101 is an equidigital number, since it uses as much as digits as its factorization.

221210112200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135810071002.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221210112200101 its reverse (101002211012122), we get a palindrome (322212323212223).

The spelling of 221210112200101 in words is "two hundred twenty-one trillion, two hundred ten billion, one hundred twelve million, two hundred thousand, one hundred one".