42011122 has 4 divisors (see below), whose sum is σ = 63016686. Its totient is φ = 21005560.

The previous prime is 42011119. The next prime is 42011153. The reversal of 42011122 is 22111024.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 31259281 + 10751841 = 5591^2 + 3279^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10502779 + ... + 10502782.

Almost surely, 2^42011122 is an apocalyptic number.

42011122 is a deficient number, since it is larger than the sum of its proper divisors (21005564).

42011122 is a wasteful number, since it uses less digits than its factorization.

42011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21005563.

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

The square root of 42011122 is about 6481.5987225375. The cubic root of 42011122 is about 347.6333446127.

Adding to 42011122 its reverse (22111024), we get a palindrome (64122146).

The spelling of 42011122 in words is "forty-two million, eleven thousand, one hundred twenty-two".