42212205122 has 8 divisors (see below), whose sum is σ = 63319362876. Its totient is φ = 21105750832.

The previous prime is 42212205121. The next prime is 42212205157. The reversal of 42212205122 is 22150221224.

It can be written as a sum of positive squares in 2 ways, for example, as 30136612801 + 12075592321 = 173599^2 + 109889^2 .

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

It is a super-2 number, since 2×42212205122² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42212205121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16028 + ... + 291000.

Almost surely, 2^42212205122 is an apocalyptic number.

42212205122 is a deficient number, since it is larger than the sum of its proper divisors (21107157754).

42212205122 is a wasteful number, since it uses less digits than its factorization.

42212205122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351732.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 42212205122 its reverse (22150221224), we get a palindrome (64362426346).

The spelling of 42212205122 in words is "forty-two billion, two hundred twelve million, two hundred five thousand, one hundred twenty-two".