30202112121 has 8 divisors (see below), whose sum is σ = 41251665504. Its totient is φ = 19643650080.

The previous prime is 30202112119. The next prime is 30202112197. The reversal of 30202112121 is 12121120203.

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

It is not a de Polignac number, because 30202112121 - 2¹ = 30202112119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30202112121.

It is not an unprimeable number, because it can be changed into a prime (30202112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122772691 + ... + 122772936.

It is an arithmetic number, because the mean of its divisors is an integer number (5156458188).

Almost surely, 2^30202112121 is an apocalyptic number.

It is an amenable number.

30202112121 is a deficient number, since it is larger than the sum of its proper divisors (11049553383).

30202112121 is a wasteful number, since it uses less digits than its factorization.

30202112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245545671.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 30202112121 its reverse (12121120203), we get a palindrome (42323232324).

The spelling of 30202112121 in words is "thirty billion, two hundred two million, one hundred twelve thousand, one hundred twenty-one".