30121122101 has 8 divisors (see below), whose sum is σ = 34548416640. Its totient is φ = 25724896848.

The previous prime is 30121122091. The next prime is 30121122113. The reversal of 30121122101 is 10122112103.

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

It is a de Polignac number, because none of the positive numbers 2^k-30121122101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121122151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7765241 + ... + 7769118.

It is an arithmetic number, because the mean of its divisors is an integer number (4318552080).

Almost surely, 2^30121122101 is an apocalyptic number.

It is an amenable number.

30121122101 is a deficient number, since it is larger than the sum of its proper divisors (4427294539).

30121122101 is a wasteful number, since it uses less digits than its factorization.

30121122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15534643.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 30121122101 its reverse (10122112103), we get a palindrome (40243234204).

The spelling of 30121122101 in words is "thirty billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred one".