223327370021621 has 8 divisors (see below), whose sum is σ = 231036324538080. Its totient is φ = 215618949553392.

The previous prime is 223327370021617. The next prime is 223327370021647. The reversal of 223327370021621 is 126120073723322.

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 223327370021621 - 2² = 223327370021617 is a prime.

It is a super-2 number, since 2×223327370021621² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223327370021321) 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, 132661175 + ... + 134334068.

It is an arithmetic number, because the mean of its divisors is an integer number (28879540567260).

Almost surely, 2^{223327370021621} is an apocalyptic number.

It is an amenable number.

223327370021621 is a deficient number, since it is larger than the sum of its proper divisors (7708954516459).

223327370021621 is a wasteful number, since it uses less digits than its factorization.

223327370021621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267024115.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 223327370021621 in words is "two hundred twenty-three trillion, three hundred twenty-seven billion, three hundred seventy million, twenty-one thousand, six hundred twenty-one".