9920201111 has 8 divisors (see below), whose sum is σ = 9935427600. Its totient is φ = 9904988800.

The previous prime is 9920201107. The next prime is 9920201117. The reversal of 9920201111 is 1111020299.

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 9920201111 - 2² = 9920201107 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 (9920201117) 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, 2678561 + ... + 2682261.

It is an arithmetic number, because the mean of its divisors is an integer number (1241928450).

Almost surely, 2^9920201111 is an apocalyptic number.

9920201111 is a deficient number, since it is larger than the sum of its proper divisors (15226489).

9920201111 is a wasteful number, since it uses less digits than its factorization.

9920201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7089.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 9920201111 is about 99600.2063803083. The cubic root of 9920201111 is about 2148.6886621085.

The spelling of 9920201111 in words is "nine billion, nine hundred twenty million, two hundred one thousand, one hundred eleven".