21100220010007 has 2 divisors, whose sum is σ = 21100220010008. Its totient is φ = 21100220010006.

The previous prime is 21100220009971. The next prime is 21100220010011. The reversal of 21100220010007 is 70001002200112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21100220010007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21100220010047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550110005003 + 10550110005004.

It is an arithmetic number, because the mean of its divisors is an integer number (10550110005004).

Almost surely, 2^{21100220010007} is an apocalyptic number.

21100220010007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21100220010007 is an equidigital number, since it uses as much as digits as its factorization.

21100220010007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 21100220010007 its reverse (70001002200112), we get a palindrome (91101222210119).

The spelling of 21100220010007 in words is "twenty-one trillion, one hundred billion, two hundred twenty million, ten thousand, seven".