42201001 has 4 divisors (see below), whose sum is σ = 42223104. Its totient is φ = 42178900.

The previous prime is 42200999. The next prime is 42201007. The reversal of 42201001 is 10010224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42201001 - 2¹ = 42200999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42201007) 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, 7885 + ... + 12106.

It is an arithmetic number, because the mean of its divisors is an integer number (10555776).

Almost surely, 2^42201001 is an apocalyptic number.

It is an amenable number.

42201001 is a deficient number, since it is larger than the sum of its proper divisors (22103).

42201001 is a wasteful number, since it uses less digits than its factorization.

42201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22102.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 42201001 is about 6496.2297527104. The cubic root of 42201001 is about 348.1562940215.

Adding to 42201001 its reverse (10010224), we get a palindrome (52211225).

The spelling of 42201001 in words is "forty-two million, two hundred one thousand, one".