21116022100316 has 192 divisors, whose sum is σ = 45926575091712. Its totient is φ = 8361342720000.

The previous prime is 21116022100297. The next prime is 21116022100319. The reversal of 21116022100316 is 61300122061112.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21116022100319) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2241373286 + ... + 2241382706.

It is an arithmetic number, because the mean of its divisors is an integer number (239200911936).

Almost surely, 2^{21116022100316} is an apocalyptic number.

21116022100316 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

21116022100316 is an abundant number, since it is smaller than the sum of its proper divisors (24810552991396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21116022100316 is a wasteful number, since it uses less digits than its factorization.

21116022100316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12604 (or 12602 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 21116022100316 its reverse (61300122061112), we get a palindrome (82416144161428).

The spelling of 21116022100316 in words is "twenty-one trillion, one hundred sixteen billion, twenty-two million, one hundred thousand, three hundred sixteen".