2251338011 has 4 divisors (see below), whose sum is σ = 2424517872. Its totient is φ = 2078158152.

The previous prime is 2251337983. The next prime is 2251338029. The reversal of 2251338011 is 1108331522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2251338011 - 2¹⁸ = 2251075867 is a prime.

It is a super-2 number, since 2×2251338011² = 10137045679546872242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251338091) 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 3 ways as a sum of consecutive naturals, for example, 86589911 + ... + 86589936.

It is an arithmetic number, because the mean of its divisors is an integer number (606129468).

Almost surely, 2^2251338011 is an apocalyptic number.

2251338011 is a deficient number, since it is larger than the sum of its proper divisors (173179861).

2251338011 is a wasteful number, since it uses less digits than its factorization.

2251338011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173179860.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 2251338011 is about 47448.2666806702. The cubic root of 2251338011 is about 1310.6303923604.

Adding to 2251338011 its reverse (1108331522), we get a palindrome (3359669533).

The spelling of 2251338011 in words is "two billion, two hundred fifty-one million, three hundred thirty-eight thousand, eleven".