16900002021101 has 2 divisors, whose sum is σ = 16900002021102. Its totient is φ = 16900002021100.

The previous prime is 16900002021053. The next prime is 16900002021103. The reversal of 16900002021101 is 10112020000961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12366658423876 + 4533343597225 = 3516626^2 + 2129165^2 .

It is an emirp because it is prime and its reverse (10112020000961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16900002021101 - 2⁴² = 12501955509997 is a prime.

It is a super-4 number, since 4×16900002021101⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 16900002021103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16900002021103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8450001010550 + 8450001010551.

It is an arithmetic number, because the mean of its divisors is an integer number (8450001010551).

Almost surely, 2^{16900002021101} is an apocalyptic number.

It is an amenable number.

16900002021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

16900002021101 is an equidigital number, since it uses as much as digits as its factorization.

16900002021101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 16900002021101 in words is "sixteen trillion, nine hundred billion, two million, twenty-one thousand, one hundred one".