30120001220101 has 12 divisors (see below), whose sum is σ = 34457217263812. Its totient is φ = 26167602866688.

The previous prime is 30120001220093. The next prime is 30120001220167. The reversal of 30120001220101 is 10102210002103.

It can be written as a sum of positive squares in 6 ways, for example, as 176505855876 + 29943495364225 = 420126^2 + 5472065^2 .

It is not a de Polignac number, because 30120001220101 - 2³ = 30120001220093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120001220191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4008513840 + ... + 4008521353.

Almost surely, 2^{30120001220101} is an apocalyptic number.

It is an amenable number.

30120001220101 is a deficient number, since it is larger than the sum of its proper divisors (4337216043711).

30120001220101 is a wasteful number, since it uses less digits than its factorization.

30120001220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8017035240 (or 8017035223 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30120001220101 its reverse (10102210002103), we get a palindrome (40222211222204).

The spelling of 30120001220101 in words is "thirty trillion, one hundred twenty billion, one million, two hundred twenty thousand, one hundred one".