30221021012 has 48 divisors (see below), whose sum is σ = 65522618112. Its totient is φ = 11876371200.

The previous prime is 30221020961. The next prime is 30221021041. The reversal of 30221021012 is 21012012203.

It is a happy number.

It is a super-2 number, since 2×30221021012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219953 + ... + 329880.

It is an arithmetic number, because the mean of its divisors is an integer number (1365054544).

Almost surely, 2^30221021012 is an apocalyptic number.

It is an amenable number.

30221021012 is an abundant number, since it is smaller than the sum of its proper divisors (35301597100).

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

30221021012 is a wasteful number, since it uses less digits than its factorization.

30221021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550008 (or 550006 counting only the distinct ones).

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

Adding to 30221021012 its reverse (21012012203), we get a palindrome (51233033215).

The spelling of 30221021012 in words is "thirty billion, two hundred twenty-one million, twenty-one thousand, twelve".