21100202211007 has 2 divisors, whose sum is σ = 21100202211008. Its totient is φ = 21100202211006.

The previous prime is 21100202210951. The next prime is 21100202211031. The reversal of 21100202211007 is 70011220200112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21100202211007 - 2¹¹ = 21100202208959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21100202211107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550101105503 + 10550101105504.

It is an arithmetic number, because the mean of its divisors is an integer number (10550101105504).

Almost surely, 2^{21100202211007} is an apocalyptic number.

21100202211007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21100202211007 is an equidigital number, since it uses as much as digits as its factorization.

21100202211007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 21100202211007 its reverse (70011220200112), we get a palindrome (91111422411119).

The spelling of 21100202211007 in words is "twenty-one trillion, one hundred billion, two hundred two million, two hundred eleven thousand, seven".