42212051 has 8 divisors (see below), whose sum is σ = 48332544. Its totient is φ = 36114120.

The previous prime is 42212047. The next prime is 42212113. The reversal of 42212051 is 15021224.

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

It is not a de Polignac number, because 42212051 - 2² = 42212047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42212011) 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 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 9296.

It is an arithmetic number, because the mean of its divisors is an integer number (6041568).

Almost surely, 2^42212051 is an apocalyptic number.

42212051 is a deficient number, since it is larger than the sum of its proper divisors (6120493).

42212051 is a wasteful number, since it uses less digits than its factorization.

42212051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42212051 is about 6497.0801903624. The cubic root of 42212051 is about 348.1866786982.

Adding to 42212051 its reverse (15021224), we get a palindrome (57233275).

The spelling of 42212051 in words is "forty-two million, two hundred twelve thousand, fifty-one".