99012291400 has 192 divisors, whose sum is σ = 254086862400. Its totient is φ = 35879500800.

The previous prime is 99012291317. The next prime is 99012291409. The reversal of 99012291400 is 419221099.

It is a self number, because there is not a number n which added to its sum of digits gives 99012291400.

It is not an unprimeable number, because it can be changed into a prime (99012291409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115264171 + ... + 115265029.

It is an arithmetic number, because the mean of its divisors is an integer number (1323369075).

Almost surely, 2^99012291400 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 99012291400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127043431200).

99012291400 is an abundant number, since it is smaller than the sum of its proper divisors (155074571000).

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

99012291400 is a wasteful number, since it uses less digits than its factorization.

99012291400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 99012291400 in words is "ninety-nine billion, twelve million, two hundred ninety-one thousand, four hundred".