21107022316 has 24 divisors (see below), whose sum is σ = 39645834480. Its totient is φ = 9796649472.

The previous prime is 21107022311. The next prime is 21107022317. The reversal of 21107022316 is 61322070112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21107022311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121046 + ... + 2130973.

It is an arithmetic number, because the mean of its divisors is an integer number (1651909770).

Almost surely, 2^21107022316 is an apocalyptic number.

It is an amenable number.

21107022316 is a deficient number, since it is larger than the sum of its proper divisors (18538812164).

21107022316 is a wasteful number, since it uses less digits than its factorization.

21107022316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252113 (or 4252111 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 21107022316 its reverse (61322070112), we get a palindrome (82429092428).

The spelling of 21107022316 in words is "twenty-one billion, one hundred seven million, twenty-two thousand, three hundred sixteen".