30201111121221 has 12 divisors (see below), whose sum is σ = 43804838909260. Its totient is φ = 20050530203520.

The previous prime is 30201111121213. The next prime is 30201111121261. The reversal of 30201111121221 is 12212111110203.

It is a happy number.

30201111121221 is a `hidden beast` number, since 302 + 0 + 11 + 11 + 121 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18493319748996 + 11707791372225 = 4300386^2 + 3421665^2 .

It is not a de Polignac number, because 30201111121221 - 2³ = 30201111121213 is a prime.

It is a super-2 number, since 2×30201111121221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30201111121194 and 30201111121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201111121261) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6961987486 + ... + 6961991823.

Almost surely, 2^{30201111121221} is an apocalyptic number.

It is an amenable number.

30201111121221 is a deficient number, since it is larger than the sum of its proper divisors (13603727788039).

30201111121221 is a wasteful number, since it uses less digits than its factorization.

30201111121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13923979556 (or 13923979553 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 30201111121221 its reverse (12212111110203), we get a palindrome (42413222231424).

The spelling of 30201111121221 in words is "thirty trillion, two hundred one billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-one".