42213001 has 4 divisors (see below), whose sum is σ = 42446404. Its totient is φ = 41979600.

The previous prime is 42212999. The next prime is 42213013. The reversal of 42213001 is 10031224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13697401 + 28515600 = 3701^2 + 5340^2 .

It is a cyclic number.

It is not a de Polignac number, because 42213001 - 2¹ = 42212999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42213701) 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, 116430 + ... + 116791.

It is an arithmetic number, because the mean of its divisors is an integer number (10611601).

Almost surely, 2^42213001 is an apocalyptic number.

It is an amenable number.

42213001 is a deficient number, since it is larger than the sum of its proper divisors (233403).

42213001 is a wasteful number, since it uses less digits than its factorization.

42213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233402.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42213001 is about 6497.1532997152. The cubic root of 42213001 is about 348.1892907079.

Adding to 42213001 its reverse (10031224), we get a palindrome (52244225).

The spelling of 42213001 in words is "forty-two million, two hundred thirteen thousand, one".