10202122111 has 2 divisors, whose sum is σ = 10202122112. Its totient is φ = 10202122110.

The previous prime is 10202122109. The next prime is 10202122129. The reversal of 10202122111 is 11122120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10202122111 - 2¹ = 10202122109 is a prime.

Together with 10202122109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10202122091 and 10202122100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10202122141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101061055 + 5101061056.

It is an arithmetic number, because the mean of its divisors is an integer number (5101061056).

Almost surely, 2^10202122111 is an apocalyptic number.

10202122111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202122111 is an equidigital number, since it uses as much as digits as its factorization.

10202122111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 10202122111 its reverse (11122120201), we get a palindrome (21324242312).

The spelling of 10202122111 in words is "ten billion, two hundred two million, one hundred twenty-two thousand, one hundred eleven".