30102230312221 has 4 divisors (see below), whose sum is σ = 31073269999744. Its totient is φ = 29131190624700.

The previous prime is 30102230312117. The next prime is 30102230312321. The reversal of 30102230312221 is 12221303220103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30102230312221 - 2²¹ = 30102228215069 is a prime.

It is a super-2 number, since 2×30102230312221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30102230312192 and 30102230312201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102230312321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485519843715 + ... + 485519843776.

It is an arithmetic number, because the mean of its divisors is an integer number (7768317499936).

Almost surely, 2^{30102230312221} is an apocalyptic number.

30102230312221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30102230312221 is a deficient number, since it is larger than the sum of its proper divisors (971039687523).

30102230312221 is an equidigital number, since it uses as much as digits as its factorization.

30102230312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971039687522.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 30102230312221 its reverse (12221303220103), we get a palindrome (42323533532324).

The spelling of 30102230312221 in words is "thirty trillion, one hundred two billion, two hundred thirty million, three hundred twelve thousand, two hundred twenty-one".