42212102 has 4 divisors (see below), whose sum is σ = 63318156. Its totient is φ = 21106050.

The previous prime is 42212047. The next prime is 42212113. The reversal of 42212102 is 20121224.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10553024 + ... + 10553027.

It is an arithmetic number, because the mean of its divisors is an integer number (15829539).

Almost surely, 2^42212102 is an apocalyptic number.

42212102 is a deficient number, since it is larger than the sum of its proper divisors (21106054).

42212102 is a wasteful number, since it uses less digits than its factorization.

42212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106053.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 42212102 is about 6497.0841152012. The cubic root of 42212102 is about 348.1868189229.

Adding to 42212102 its reverse (20121224), we get a palindrome (62333326).

The spelling of 42212102 in words is "forty-two million, two hundred twelve thousand, one hundred two".