30221000002 has 4 divisors (see below), whose sum is σ = 45331500006. Its totient is φ = 15110500000.

The previous prime is 30220999999. The next prime is 30221000009. The reversal of 30221000002 is 20000012203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28348793641 + 1872206361 = 168371^2 + 43269^2 .

It is a super-2 number, since 2×30221000002² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30221000009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7555249999 + ... + 7555250002.

Almost surely, 2^30221000002 is an apocalyptic number.

30221000002 is a deficient number, since it is larger than the sum of its proper divisors (15110500004).

30221000002 is a wasteful number, since it uses less digits than its factorization.

30221000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15110500003.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 30221000002 its reverse (20000012203), we get a palindrome (50221012205).

The spelling of 30221000002 in words is "thirty billion, two hundred twenty-one million, two", and thus it is an aban number.