42211001 has 12 divisors (see below), whose sum is σ = 49335552. Its totient is φ = 36009288.

The previous prime is 42210997. The next prime is 42211007. The reversal of 42211001 is 10011224.

It is not a de Polignac number, because 42211001 - 2² = 42210997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42211007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8996 + ... + 12858.

It is an arithmetic number, because the mean of its divisors is an integer number (4111296).

Almost surely, 2^42211001 is an apocalyptic number.

It is an amenable number.

42211001 is a deficient number, since it is larger than the sum of its proper divisors (7124551).

42211001 is a wasteful number, since it uses less digits than its factorization.

42211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100 (or 4093 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 42211001 is about 6496.9993843312. Note that the first 3 decimals coincide. The cubic root of 42211001 is about 348.1837916945.

Adding to 42211001 its reverse (10011224), we get a palindrome (52222225).

The spelling of 42211001 in words is "forty-two million, two hundred eleven thousand, one".