2120101110121 has 8 divisors (see below), whose sum is σ = 2188628193024. Its totient is φ = 2051582572560.

The previous prime is 2120101110103. The next prime is 2120101110131. The reversal of 2120101110121 is 1210111010212.

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 2120101110121 - 2³¹ = 2117953626473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120101110131) 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, 1630210 + ... + 2626363.

It is an arithmetic number, because the mean of its divisors is an integer number (273578524128).

Almost surely, 2^{2120101110121} is an apocalyptic number.

It is an amenable number.

2120101110121 is a deficient number, since it is larger than the sum of its proper divisors (68527082903).

2120101110121 is a wasteful number, since it uses less digits than its factorization.

2120101110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272671.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2120101110121 its reverse (1210111010212), we get a palindrome (3330212120333).

Subtracting from 2120101110121 its reverse (1210111010212), we obtain a palindrome (909990099909).

The spelling of 2120101110121 in words is "two trillion, one hundred twenty billion, one hundred one million, one hundred ten thousand, one hundred twenty-one".