21616026014211 has 16 divisors (see below), whose sum is σ = 29601790103808. Its totient is φ = 14020511551200.

The previous prime is 21616026014203. The next prime is 21616026014237. The reversal of 21616026014211 is 11241062061612.

It is not a de Polignac number, because 21616026014211 - 2³ = 21616026014203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21616026014201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2567245 + ... + 7058526.

It is an arithmetic number, because the mean of its divisors is an integer number (1850111881488).

Almost surely, 2^{21616026014211} is an apocalyptic number.

21616026014211 is a deficient number, since it is larger than the sum of its proper divisors (7985764089597).

21616026014211 is a wasteful number, since it uses less digits than its factorization.

21616026014211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646042.

The product of its (nonzero) digits is 6912, while the sum is 33.

Adding to 21616026014211 its reverse (11241062061612), we get a palindrome (32857088075823).

The spelling of 21616026014211 in words is "twenty-one trillion, six hundred sixteen billion, twenty-six million, fourteen thousand, two hundred eleven".