201221013030 has 16 divisors (see below), whose sum is σ = 482930431344. Its totient is φ = 53658936800.

The previous prime is 201221013029. The next prime is 201221013041. The reversal of 201221013030 is 30310122102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3353683521 + ... + 3353683580.

It is an arithmetic number, because the mean of its divisors is an integer number (30183151959).

Almost surely, 2^201221013030 is an apocalyptic number.

201221013030 is an abundant number, since it is smaller than the sum of its proper divisors (281709418314).

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

201221013030 is a wasteful number, since it uses less digits than its factorization.

201221013030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707367111.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 201221013030 its reverse (30310122102), we get a palindrome (231531135132).

The spelling of 201221013030 in words is "two hundred one billion, two hundred twenty-one million, thirteen thousand, thirty".