20210112100121 has 8 divisors (see below), whose sum is σ = 20466122649600. Its totient is φ = 19954106209440.

The previous prime is 20210112100109. The next prime is 20210112100133. The reversal of 20210112100121 is 12100121101202.

It is an interprime number because it is at equal distance from previous prime (20210112100109) and next prime (20210112100133).

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 20210112100121 - 2²² = 20210107905817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210112100096 and 20210112100105.

It is not an unprimeable number, because it can be changed into a prime (20210112100021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8022440 + ... + 10236198.

It is an arithmetic number, because the mean of its divisors is an integer number (2558265331200).

Almost surely, 2^{20210112100121} is an apocalyptic number.

It is an amenable number.

20210112100121 is a deficient number, since it is larger than the sum of its proper divisors (256010549479).

20210112100121 is a wasteful number, since it uses less digits than its factorization.

20210112100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329399.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20210112100121 its reverse (12100121101202), we get a palindrome (32310233201323).

The spelling of 20210112100121 in words is "twenty trillion, two hundred ten billion, one hundred twelve million, one hundred thousand, one hundred twenty-one".