42211012 has 12 divisors (see below), whose sum is σ = 74001340. Its totient is φ = 21067776.

The previous prime is 42211007. The next prime is 42211063. The reversal of 42211012 is 21011224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 427716 = 6464^2 + 654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42210983 and 42211001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6837 + ... + 11452.

Almost surely, 2^42211012 is an apocalyptic number.

It is an amenable number.

42211012 is a deficient number, since it is larger than the sum of its proper divisors (31790328).

42211012 is a wasteful number, since it uses less digits than its factorization.

42211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18870 (or 18868 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 42211012 is about 6497.0002308758. Note that the first 3 decimals coincide. The cubic root of 42211012 is about 348.1838219395.

Adding to 42211012 its reverse (21011224), we get a palindrome (63222236).

The spelling of 42211012 in words is "forty-two million, two hundred eleven thousand, twelve".