99112221101 has 4 divisors (see below), whose sum is σ = 104942351772. Its totient is φ = 93282090432.

The previous prime is 99112221001. The next prime is 99112221137. The reversal of 99112221101 is 10112221199.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34049475625 + 65062745476 = 184525^2 + 255074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99112221101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99112221151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915065310 + ... + 2915065343.

It is an arithmetic number, because the mean of its divisors is an integer number (26235587943).

Almost surely, 2^99112221101 is an apocalyptic number.

It is an amenable number.

99112221101 is a deficient number, since it is larger than the sum of its proper divisors (5830130671).

99112221101 is a wasteful number, since it uses less digits than its factorization.

99112221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830130670.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 99112221101 in words is "ninety-nine billion, one hundred twelve million, two hundred twenty-one thousand, one hundred one".