99001221102 has 48 divisors (see below), whose sum is σ = 245166704640. Its totient is φ = 28283660496.

The previous prime is 99001221083. The next prime is 99001221107. The reversal of 99001221102 is 20112210099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99001221107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1897399 + ... + 1948877.

It is an arithmetic number, because the mean of its divisors is an integer number (5107639680).

Almost surely, 2^99001221102 is an apocalyptic number.

99001221102 is an abundant number, since it is smaller than the sum of its proper divisors (146165483538).

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

99001221102 is a wasteful number, since it uses less digits than its factorization.

99001221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66757 (or 66754 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 99001221102 in words is "ninety-nine billion, one million, two hundred twenty-one thousand, one hundred two".