101229999 has 8 divisors (see below), whose sum is σ = 145355952. Its totient is φ = 62295360.

The previous prime is 101229991. The next prime is 101230001. The reversal of 101229999 is 999922101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101229999 - 2³ = 101229991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101229999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101229991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1297782 + ... + 1297859.

It is an arithmetic number, because the mean of its divisors is an integer number (18169494).

Almost surely, 2^101229999 is an apocalyptic number.

101229999 is a deficient number, since it is larger than the sum of its proper divisors (44125953).

101229999 is a wasteful number, since it uses less digits than its factorization.

101229999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595657.

The product of its (nonzero) digits is 26244, while the sum is 42.

The square root of 101229999 is about 10061.3119919820. The cubic root of 101229999 is about 466.0541836215.

The spelling of 101229999 in words is "one hundred one million, two hundred twenty-nine thousand, nine hundred ninety-nine".