221303020212230 has 32 divisors (see below), whose sum is σ = 453452512566528. Its totient is φ = 76974963551200.

The previous prime is 221303020212223. The next prime is 221303020212233. The reversal of 221303020212230 is 32212020303122.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 221303020212196 and 221303020212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221303020212233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43735772216 + ... + 43735777275.

It is an arithmetic number, because the mean of its divisors is an integer number (14170391017704).

Almost surely, 2^{221303020212230} is an apocalyptic number.

221303020212230 is an abundant number, since it is smaller than the sum of its proper divisors (232149492354298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221303020212230 is a wasteful number, since it uses less digits than its factorization.

221303020212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87471549532.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 221303020212230 its reverse (32212020303122), we get a palindrome (253515040515352).

The spelling of 221303020212230 in words is "two hundred twenty-one trillion, three hundred three billion, twenty million, two hundred twelve thousand, two hundred thirty".