2251071042 has 32 divisors (see below), whose sum is σ = 5124971520. Its totient is φ = 652483920.

The previous prime is 2251071041. The next prime is 2251071103. The reversal of 2251071042 is 2401701522.

It is a super-2 number, since 2×2251071042² = 10134641672261931528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2251071041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739942 + ... + 742977.

It is an arithmetic number, because the mean of its divisors is an integer number (160155360).

Almost surely, 2^2251071042 is an apocalyptic number.

2251071042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2251071042 is an abundant number, since it is smaller than the sum of its proper divisors (2873900478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251071042 is a wasteful number, since it uses less digits than its factorization.

2251071042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482958.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 2251071042 is about 47445.4533332753. The cubic root of 2251071042 is about 1310.5785844259.

Adding to 2251071042 its reverse (2401701522), we get a palindrome (4652772564).

The spelling of 2251071042 in words is "two billion, two hundred fifty-one million, seventy-one thousand, forty-two".