21101212096 has 28 divisors (see below), whose sum is σ = 41881577400. Its totient is φ = 10548373760.

The previous prime is 21101212079. The next prime is 21101212103. The reversal of 21101212096 is 69021210112.

It is a happy number.

It is a super-2 number, since 2×21101212096² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21101212096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294006 + ... + 358666.

Almost surely, 2^21101212096 is an apocalyptic number.

It is an amenable number.

21101212096 is a deficient number, since it is larger than the sum of its proper divisors (20780365304).

21101212096 is an equidigital number, since it uses as much as digits as its factorization.

21101212096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69772 (or 69762 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 21101212096 in words is "twenty-one billion, one hundred one million, two hundred twelve thousand, ninety-six".