21110201121067 has 2 divisors, whose sum is σ = 21110201121068. Its totient is φ = 21110201121066.

The previous prime is 21110201120999. The next prime is 21110201121071. The reversal of 21110201121067 is 76012110201112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21110201121067 - 2²⁷ = 21110066903339 is a prime.

It is not a weakly prime, because it can be changed into another prime (21110201125067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555100560533 + 10555100560534.

It is an arithmetic number, because the mean of its divisors is an integer number (10555100560534).

Almost surely, 2^{21110201121067} is an apocalyptic number.

21110201121067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110201121067 is an equidigital number, since it uses as much as digits as its factorization.

21110201121067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 25.

Adding to 21110201121067 its reverse (76012110201112), we get a palindrome (97122311322179).

The spelling of 21110201121067 in words is "twenty-one trillion, one hundred ten billion, two hundred one million, one hundred twenty-one thousand, sixty-seven".