221312314101 has 8 divisors (see below), whose sum is σ = 295085262240. Its totient is φ = 147540454352.

The previous prime is 221312314081. The next prime is 221312314183. The reversal of 221312314101 is 101413213122.

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 221312314101 - 2²² = 221308119797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221312314001) 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, 623215 + ... + 911603.

It is an arithmetic number, because the mean of its divisors is an integer number (36885657780).

Almost surely, 2^221312314101 is an apocalyptic number.

It is an amenable number.

221312314101 is a deficient number, since it is larger than the sum of its proper divisors (73772948139).

221312314101 is a wasteful number, since it uses less digits than its factorization.

221312314101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544195.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 221312314101 its reverse (101413213122), we get a palindrome (322725527223).

The spelling of 221312314101 in words is "two hundred twenty-one billion, three hundred twelve million, three hundred fourteen thousand, one hundred one".