2101112020121 has 8 divisors (see below), whose sum is σ = 2321433229824. Its totient is φ = 1891538186560.

The previous prime is 2101112020103. The next prime is 2101112020151. The reversal of 2101112020121 is 1210202111012.

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

It is not a de Polignac number, because 2101112020121 - 2²⁶ = 2101044911257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101112020096 and 2101112020105.

It is not an unprimeable number, because it can be changed into a prime (2101112020151) 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, 2686843625 + ... + 2686844406.

It is an arithmetic number, because the mean of its divisors is an integer number (290179153728).

Almost surely, 2^{2101112020121} is an apocalyptic number.

It is an amenable number.

2101112020121 is a deficient number, since it is larger than the sum of its proper divisors (220321209703).

2101112020121 is a wasteful number, since it uses less digits than its factorization.

2101112020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5373688071.

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

Adding to 2101112020121 its reverse (1210202111012), we get a palindrome (3311314131133).

The spelling of 2101112020121 in words is "two trillion, one hundred one billion, one hundred twelve million, twenty thousand, one hundred twenty-one".