2120010021111 has 8 divisors (see below), whose sum is σ = 2840884451200. Its totient is φ = 1406237802552.

The previous prime is 2120010021091. The next prime is 2120010021119. The reversal of 2120010021111 is 1111200100212.

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

It is not a de Polignac number, because 2120010021111 - 2³⁰ = 2118936279287 is a prime.

It is a super-2 number, since 2×2120010021111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120010021119) 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, 1775552185 + ... + 1775553378.

It is an arithmetic number, because the mean of its divisors is an integer number (355110556400).

Almost surely, 2^{2120010021111} is an apocalyptic number.

2120010021111 is a deficient number, since it is larger than the sum of its proper divisors (720874430089).

2120010021111 is a wasteful number, since it uses less digits than its factorization.

2120010021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551105765.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2120010021111 its reverse (1111200100212), we get a palindrome (3231210121323).

The spelling of 2120010021111 in words is "two trillion, one hundred twenty billion, ten million, twenty-one thousand, one hundred eleven".