1005557122 has 8 divisors (see below), whose sum is σ = 1509564672. Its totient is φ = 502368900.

The previous prime is 1005557081. The next prime is 1005557129. The reversal of 1005557122 is 2217555001.

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

It is a super-2 number, since 2×1005557122² = 2022290251209845768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1005557129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201754 + ... + 206677.

It is an arithmetic number, because the mean of its divisors is an integer number (188695584).

Almost surely, 2^1005557122 is an apocalyptic number.

1005557122 is a deficient number, since it is larger than the sum of its proper divisors (504007550).

1005557122 is a wasteful number, since it uses less digits than its factorization.

1005557122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409664.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 1005557122 is about 31710.5206832054. The cubic root of 1005557122 is about 1001.8489532649.

The spelling of 1005557122 in words is "one billion, five million, five hundred fifty-seven thousand, one hundred twenty-two".