2112021121001 has 4 divisors (see below), whose sum is σ = 2304023041104. Its totient is φ = 1920019200900.

The previous prime is 2112021120971. The next prime is 2112021121019. The reversal of 2112021121001 is 1001211202112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2112021121001 - 2¹⁰ = 2112021119977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112021121031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96000960035 + ... + 96000960056.

It is an arithmetic number, because the mean of its divisors is an integer number (576005760276).

Almost surely, 2^{2112021121001} is an apocalyptic number.

It is an amenable number.

2112021121001 is a deficient number, since it is larger than the sum of its proper divisors (192001920103).

2112021121001 is a wasteful number, since it uses less digits than its factorization.

2112021121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192001920102.

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

Adding to 2112021121001 its reverse (1001211202112), we get a palindrome (3113232323113).

It can be divided in two parts, 211202112 and 1001, that multiplied together give a palindrome (211413314112).

The spelling of 2112021121001 in words is "two trillion, one hundred twelve billion, twenty-one million, one hundred twenty-one thousand, one".