20120012010121 has 8 divisors (see below), whose sum is σ = 20470908938688. Its totient is φ = 19769794458000.

The previous prime is 20120012010113. The next prime is 20120012010143. The reversal of 20120012010121 is 12101021002102.

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

It is a cyclic number.

It is not a de Polignac number, because 20120012010121 - 2³ = 20120012010113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120012010101) 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, 169784365 + ... + 169902826.

It is an arithmetic number, because the mean of its divisors is an integer number (2558863617336).

Almost surely, 2^{20120012010121} is an apocalyptic number.

It is an amenable number.

20120012010121 is a deficient number, since it is larger than the sum of its proper divisors (350896928567).

20120012010121 is an equidigital number, since it uses as much as digits as its factorization.

20120012010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339688223.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20120012010121 its reverse (12101021002102), we get a palindrome (32221033012223).

The spelling of 20120012010121 in words is "twenty trillion, one hundred twenty billion, twelve million, ten thousand, one hundred twenty-one".