101099442 has 16 divisors (see below), whose sum is σ = 214093152. Its totient is φ = 31717440.

The previous prime is 101099417. The next prime is 101099443. The reversal of 101099442 is 244990101.

It is a super-2 number, since 2×101099442² = 20442194345422728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101099443) 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, 495484 + ... + 495687.

It is an arithmetic number, because the mean of its divisors is an integer number (13380822).

Almost surely, 2^101099442 is an apocalyptic number.

101099442 is an abundant number, since it is smaller than the sum of its proper divisors (112993710).

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

101099442 is a wasteful number, since it uses less digits than its factorization.

101099442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991193.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 101099442 is about 10054.8218283568. The cubic root of 101099442 is about 465.8537397033.

The spelling of 101099442 in words is "one hundred one million, ninety-nine thousand, four hundred forty-two".