9921098092 has 6 divisors (see below), whose sum is σ = 17361921668. Its totient is φ = 4960549044.

The previous prime is 9921098081. The next prime is 9921098111. The reversal of 9921098092 is 2908901299.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1240137258 + ... + 1240137265.

Almost surely, 2^9921098092 is an apocalyptic number.

It is an amenable number.

9921098092 is a deficient number, since it is larger than the sum of its proper divisors (7440823576).

9921098092 is a wasteful number, since it uses less digits than its factorization.

9921098092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480274527 (or 2480274525 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 49.

The square root of 9921098092 is about 99604.7091858613. The cubic root of 9921098092 is about 2148.7534213742.

The spelling of 9921098092 in words is "nine billion, nine hundred twenty-one million, ninety-eight thousand, ninety-two".