42200558122 has 4 divisors (see below), whose sum is σ = 63300837186. Its totient is φ = 21100279060.

The previous prime is 42200558089. The next prime is 42200558129. The reversal of 42200558122 is 22185500224.

42200558122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 39787881961 + 2412676161 = 199469^2 + 49119^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (42200558129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550139529 + ... + 10550139532.

Almost surely, 2^42200558122 is an apocalyptic number.

42200558122 is a deficient number, since it is larger than the sum of its proper divisors (21100279064).

42200558122 is a wasteful number, since it uses less digits than its factorization.

42200558122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21100279063.

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 42200558122 in words is "forty-two billion, two hundred million, five hundred fifty-eight thousand, one hundred twenty-two".