221130233101 has 4 divisors (see below), whose sum is σ = 223277128672. Its totient is φ = 218983337532.

The previous prime is 221130233089. The next prime is 221130233113. The reversal of 221130233101 is 101332031122.

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 an interprime number because it is at equal distance from previous prime (221130233089) and next prime (221130233113).

It is a cyclic number.

It is not a de Polignac number, because 221130233101 - 2²⁵ = 221096678669 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 (221130233171) 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, 1073447631 + ... + 1073447836.

It is an arithmetic number, because the mean of its divisors is an integer number (55819282168).

Almost surely, 2^221130233101 is an apocalyptic number.

It is an amenable number.

221130233101 is a deficient number, since it is larger than the sum of its proper divisors (2146895571).

221130233101 is a wasteful number, since it uses less digits than its factorization.

221130233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146895570.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221130233101 its reverse (101332031122), we get a palindrome (322462264223).

The spelling of 221130233101 in words is "two hundred twenty-one billion, one hundred thirty million, two hundred thirty-three thousand, one hundred one".