21302030100222 has 32 divisors (see below), whose sum is σ = 47338967289600. Its totient is φ = 7100508306744.

The previous prime is 21302030100209. The next prime is 21302030100223. The reversal of 21302030100222 is 22200103020312.

It is a super-2 number, since 2×21302030100222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21302030100195 and 21302030100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302030100223) 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, 2369028 + ... + 6943799.

It is an arithmetic number, because the mean of its divisors is an integer number (1479342727800).

Almost surely, 2^{21302030100222} is an apocalyptic number.

21302030100222 is an abundant number, since it is smaller than the sum of its proper divisors (26036937189378).

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

21302030100222 is a wasteful number, since it uses less digits than its factorization.

21302030100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9355197 (or 9355191 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21302030100222 its reverse (22200103020312), we get a palindrome (43502133120534).

The spelling of 21302030100222 in words is "twenty-one trillion, three hundred two billion, thirty million, one hundred thousand, two hundred twenty-two".