9920990101 has 8 divisors (see below), whose sum is σ = 11459539584. Its totient is φ = 8488547520.

The previous prime is 9920990099. The next prime is 9920990137. The reversal of 9920990101 is 1010990299.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9920990101 - 2¹ = 9920990099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920910101) 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, 26526525 + ... + 26526898.

It is an arithmetic number, because the mean of its divisors is an integer number (1432442448).

Almost surely, 2^9920990101 is an apocalyptic number.

It is an amenable number.

9920990101 is a deficient number, since it is larger than the sum of its proper divisors (1538549483).

9920990101 is a wasteful number, since it uses less digits than its factorization.

9920990101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53053451.

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 9920990101 is about 99604.1670865230. The cubic root of 9920990101 is about 2148.7456249632.

The spelling of 9920990101 in words is "nine billion, nine hundred twenty million, nine hundred ninety thousand, one hundred one".