2120021200111 has 8 divisors (see below), whose sum is σ = 2127633135264. Its totient is φ = 2112409743360.

The previous prime is 2120021200103. The next prime is 2120021200127. The reversal of 2120021200111 is 1110021200212.

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 2120021200111 - 2³ = 2120021200103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120021200091 and 2120021200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120021200151) 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, 10421871 + ... + 10623343.

It is an arithmetic number, because the mean of its divisors is an integer number (265954141908).

Almost surely, 2^{2120021200111} is an apocalyptic number.

2120021200111 is a deficient number, since it is larger than the sum of its proper divisors (7611935153).

2120021200111 is a wasteful number, since it uses less digits than its factorization.

2120021200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239201.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2120021200111 its reverse (1110021200212), we get a palindrome (3230042400323).

The spelling of 2120021200111 in words is "two trillion, one hundred twenty billion, twenty-one million, two hundred thousand, one hundred eleven".