221300010421 has 8 divisors (see below), whose sum is σ = 254428755840. Its totient is φ = 188549879568.

The previous prime is 221300010397. The next prime is 221300010427. The reversal of 221300010421 is 124010003122.

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 221300010421 - 2⁷ = 221300010293 is a prime.

It is a super-2 number, since 2×221300010421² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221300010395 and 221300010404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300010427) 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, 94652386 + ... + 94654723.

It is an arithmetic number, because the mean of its divisors is an integer number (31803594480).

Almost surely, 2^221300010421 is an apocalyptic number.

It is an amenable number.

221300010421 is a deficient number, since it is larger than the sum of its proper divisors (33128745419).

221300010421 is a wasteful number, since it uses less digits than its factorization.

221300010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189307283.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221300010421 its reverse (124010003122), we get a palindrome (345310013543).

The spelling of 221300010421 in words is "two hundred twenty-one billion, three hundred million, ten thousand, four hundred twenty-one".