2120211010111 has 2 divisors, whose sum is σ = 2120211010112. Its totient is φ = 2120211010110.

The previous prime is 2120211010069. The next prime is 2120211010117. The reversal of 2120211010111 is 1110101120212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120211010111 - 2⁹ = 2120211009599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120211010091 and 2120211010100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120211010117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060105505055 + 1060105505056.

It is an arithmetic number, because the mean of its divisors is an integer number (1060105505056).

Almost surely, 2^{2120211010111} is an apocalyptic number.

2120211010111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120211010111 is an equidigital number, since it uses as much as digits as its factorization.

2120211010111 is an evil number, because the sum of its binary digits is even.

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

Adding to 2120211010111 its reverse (1110101120212), we get a palindrome (3230312130323).

The spelling of 2120211010111 in words is "two trillion, one hundred twenty billion, two hundred eleven million, ten thousand, one hundred eleven".