221010233101 has 4 divisors (see below), whose sum is σ = 252583123552. Its totient is φ = 189437342652.

The previous prime is 221010233077. The next prime is 221010233113. The reversal of 221010233101 is 101332010122.

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 221010233101 - 2³⁵ = 186650494733 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 (221010233161) 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, 15786445215 + ... + 15786445228.

It is an arithmetic number, because the mean of its divisors is an integer number (63145780888).

Almost surely, 2^221010233101 is an apocalyptic number.

It is an amenable number.

221010233101 is a deficient number, since it is larger than the sum of its proper divisors (31572890451).

221010233101 is an equidigital number, since it uses as much as digits as its factorization.

221010233101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31572890450.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221010233101 its reverse (101332010122), we get a palindrome (322342243223).

The spelling of 221010233101 in words is "two hundred twenty-one billion, ten million, two hundred thirty-three thousand, one hundred one".