42020122 has 8 divisors (see below), whose sum is σ = 63971136. Its totient is φ = 20696412.

The previous prime is 42020093. The next prime is 42020131. The reversal of 42020122 is 22102024.

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

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, 156658 + ... + 156925.

It is an arithmetic number, because the mean of its divisors is an integer number (7996392).

Almost surely, 2^42020122 is an apocalyptic number.

42020122 is a deficient number, since it is larger than the sum of its proper divisors (21951014).

42020122 is a wasteful number, since it uses less digits than its factorization.

42020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313652.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 42020122 is about 6482.2929585140. The cubic root of 42020122 is about 347.6581672197.

Adding to 42020122 its reverse (22102024), we get a palindrome (64122146).

The spelling of 42020122 in words is "forty-two million, twenty thousand, one hundred twenty-two".