42223430213221 has 8 divisors (see below), whose sum is σ = 44708158647360. Its totient is φ = 39738812584128.

The previous prime is 42223430213203. The next prime is 42223430213257. The reversal of 42223430213221 is 12231203432224.

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 42223430213221 - 2²¹ = 42223428116069 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 (42223430213291) 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, 26916081 + ... + 28441558.

It is an arithmetic number, because the mean of its divisors is an integer number (5588519830920).

Almost surely, 2^{42223430213221} is an apocalyptic number.

It is an amenable number.

42223430213221 is a deficient number, since it is larger than the sum of its proper divisors (2484728434139).

42223430213221 is a wasteful number, since it uses less digits than its factorization.

42223430213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55402523.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 42223430213221 its reverse (12231203432224), we get a palindrome (54454633645445).

The spelling of 42223430213221 in words is "forty-two trillion, two hundred twenty-three billion, four hundred thirty million, two hundred thirteen thousand, two hundred twenty-one".