30010212221 has 4 divisors (see below), whose sum is σ = 32738413344. Its totient is φ = 27282011100.

The previous prime is 30010212139. The next prime is 30010212233. The reversal of 30010212221 is 12221201003.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-30010212221 is a prime.

It is a super-2 number, since 2×30010212221² (a number of 22 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 = 30010212196 and 30010212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010212521) 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, 1364100545 + ... + 1364100566.

It is an arithmetic number, because the mean of its divisors is an integer number (8184603336).

Almost surely, 2^30010212221 is an apocalyptic number.

It is an amenable number.

30010212221 is a deficient number, since it is larger than the sum of its proper divisors (2728201123).

30010212221 is a wasteful number, since it uses less digits than its factorization.

30010212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728201122.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 30010212221 its reverse (12221201003), we get a palindrome (42231413224).

The spelling of 30010212221 in words is "thirty billion, ten million, two hundred twelve thousand, two hundred twenty-one".