1004122251 has 30 divisors (see below), whose sum is σ = 1648760036. Its totient is φ = 608553000.

The previous prime is 1004122219. The next prime is 1004122307. The reversal of 1004122251 is 1522214001.

1004122251 is a `hidden beast` number, since 1 + 0 + 0 + 412 + 2 + 251 = 666.

It is not a de Polignac number, because 1004122251 - 2⁵ = 1004122219 is a prime.

It is a super-2 number, since 2×1004122251² = 2016522989906614002, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1004122151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 41425 + ... + 61026.

Almost surely, 2^1004122251 is an apocalyptic number.

1004122251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1004122251 is a deficient number, since it is larger than the sum of its proper divisors (644637785).

1004122251 is a wasteful number, since it uses less digits than its factorization.

1004122251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102485 (or 102465 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1004122251 is about 31687.8880804638. Note that the first 3 decimals coincide. The cubic root of 1004122251 is about 1001.3721998729.

Adding to 1004122251 its reverse (1522214001), we get a palindrome (2526336252).

The spelling of 1004122251 in words is "one billion, four million, one hundred twenty-two thousand, two hundred fifty-one".