42203122 has 8 divisors (see below), whose sum is σ = 68174316. Its totient is φ = 19478352.

The previous prime is 42203111. The next prime is 42203131. The reversal of 42203122 is 22130224.

It can be written as a sum of positive squares in 2 ways, for example, as 40717161 + 1485961 = 6381^2 + 1219^2 .

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

It is a super-2 number, since 2×42203122² = 3562207013093768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42203096 and 42203105.

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, 811573 + ... + 811624.

Almost surely, 2^42203122 is an apocalyptic number.

42203122 is a deficient number, since it is larger than the sum of its proper divisors (25971194).

42203122 is a wasteful number, since it uses less digits than its factorization.

42203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623212.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42203122 is about 6496.3929991958. The cubic root of 42203122 is about 348.1621266409.

Adding to 42203122 its reverse (22130224), we get a palindrome (64333346).

The spelling of 42203122 in words is "forty-two million, two hundred three thousand, one hundred twenty-two".