30221211021 has 8 divisors (see below), whose sum is σ = 40307000544. Its totient is φ = 20141447760.

The previous prime is 30221210959. The next prime is 30221211047. The reversal of 30221211021 is 12011212203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30221211021 - 2¹⁷ = 30221079949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221211061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494850 + ... + 1514931.

It is an arithmetic number, because the mean of its divisors is an integer number (5038375068).

Almost surely, 2^30221211021 is an apocalyptic number.

It is an amenable number.

30221211021 is a deficient number, since it is larger than the sum of its proper divisors (10085789523).

30221211021 is a wasteful number, since it uses less digits than its factorization.

30221211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3013131.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30221211021 its reverse (12011212203), we get a palindrome (42232423224).

The spelling of 30221211021 in words is "thirty billion, two hundred twenty-one million, two hundred eleven thousand, twenty-one".