20212131010121 has 8 divisors (see below), whose sum is σ = 20510374082688. Its totient is φ = 19914264748000.

The previous prime is 20212131010067. The next prime is 20212131010129. The reversal of 20212131010121 is 12101013121202.

It is a happy number.

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 20212131010121 - 2¹⁰ = 20212131009097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212131010121.

It is not an unprimeable number, because it can be changed into a prime (20212131010129) 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, 94094540 + ... + 94309101.

It is an arithmetic number, because the mean of its divisors is an integer number (2563796760336).

Almost surely, 2^{20212131010121} is an apocalyptic number.

It is an amenable number.

20212131010121 is a deficient number, since it is larger than the sum of its proper divisors (298243072567).

20212131010121 is a wasteful number, since it uses less digits than its factorization.

20212131010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188405223.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20212131010121 its reverse (12101013121202), we get a palindrome (32313144131323).

The spelling of 20212131010121 in words is "twenty trillion, two hundred twelve billion, one hundred thirty-one million, ten thousand, one hundred twenty-one".