30201111210121 has 8 divisors (see below), whose sum is σ = 30205764807624. Its totient is φ = 30196457984640.

The previous prime is 30201111210071. The next prime is 30201111210139. The reversal of 30201111210121 is 12101211110203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1949877104400 + 28251234105721 = 1396380^2 + 5315189^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30201111210121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30201111210095 and 30201111210104.

It is not an unprimeable number, because it can be changed into a prime (30201111210191) 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, 191405541 + ... + 191563261.

It is an arithmetic number, because the mean of its divisors is an integer number (3775720600953).

Almost surely, 2^{30201111210121} is an apocalyptic number.

It is an amenable number.

30201111210121 is a deficient number, since it is larger than the sum of its proper divisors (4653597503).

30201111210121 is a wasteful number, since it uses less digits than its factorization.

30201111210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186011.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 30201111210121 its reverse (12101211110203), we get a palindrome (42302322320324).

The spelling of 30201111210121 in words is "thirty trillion, two hundred one billion, one hundred eleven million, two hundred ten thousand, one hundred twenty-one".