30201211211221 has 16 divisors (see below), whose sum is σ = 31377816288000. Its totient is φ = 29033627152768.

The previous prime is 30201211211159. The next prime is 30201211211239. The reversal of 30201211211221 is 12211211210203.

It is not a de Polignac number, because 30201211211221 - 2¹³ = 30201211203029 is a prime.

It is a super-2 number, since 2×30201211211221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201211211261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255348720 + ... + 255466966.

It is an arithmetic number, because the mean of its divisors is an integer number (1961113518000).

Almost surely, 2^{30201211211221} is an apocalyptic number.

It is an amenable number.

30201211211221 is a deficient number, since it is larger than the sum of its proper divisors (1176605076779).

30201211211221 is a wasteful number, since it uses less digits than its factorization.

30201211211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156308.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 30201211211221 its reverse (12211211210203), we get a palindrome (42412422421424).

The spelling of 30201211211221 in words is "thirty trillion, two hundred one billion, two hundred eleven million, two hundred eleven thousand, two hundred twenty-one".