442102101 has 8 divisors (see below), whose sum is σ = 673679424. Its totient is φ = 252629760.

The previous prime is 442102061. The next prime is 442102103. The reversal of 442102101 is 101201244.

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

It is not a de Polignac number, because 442102101 - 2¹³ = 442093909 is a prime.

It is a super-2 number, since 2×442102101² = 390908535417228402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442102103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10526220 + ... + 10526261.

It is an arithmetic number, because the mean of its divisors is an integer number (84209928).

Almost surely, 2^442102101 is an apocalyptic number.

It is an amenable number.

442102101 is a deficient number, since it is larger than the sum of its proper divisors (231577323).

442102101 is a wasteful number, since it uses less digits than its factorization.

442102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21052491.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 442102101 is about 21026.2241260765. The cubic root of 442102101 is about 761.7998092885.

Adding to 442102101 its reverse (101201244), we get a palindrome (543303345).

The spelling of 442102101 in words is "four hundred forty-two million, one hundred two thousand, one hundred one".