99011020000 has 120 divisors (see below), whose sum is σ = 244638890496. Its totient is φ = 39432576000.

The previous prime is 99011019973. The next prime is 99011020079. The reversal of 99011020000 is 2011099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4649377 + ... + 4670623.

Almost surely, 2^99011020000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99011020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122319445248).

99011020000 is an abundant number, since it is smaller than the sum of its proper divisors (145627870496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99011020000 is a wasteful number, since it uses less digits than its factorization.

99011020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21510 (or 21487 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 99011020000 its reverse (2011099), we get a palindrome (99013031099).

The spelling of 99011020000 in words is "ninety-nine billion, eleven million, twenty thousand".