11121251 has 8 divisors (see below), whose sum is σ = 11793600. Its totient is φ = 10457640.

The previous prime is 11121223. The next prime is 11121307. The reversal of 11121251 is 15212111.

11121251 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11121251 - 2²² = 6926947 is a prime.

It is a Duffinian number.

11121251 is a modest number, since divided by 1251 gives 1112 as remainder.

It is not an unprimeable number, because it can be changed into a prime (11120251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536 + ... + 4746.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^11121251 is an apocalyptic number.

11121251 is a deficient number, since it is larger than the sum of its proper divisors (672349).

11121251 is a wasteful number, since it uses less digits than its factorization.

11121251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4369.

The product of its digits is 20, while the sum is 14.

The square root of 11121251 is about 3334.8539698164. The cubic root of 11121251 is about 223.2121758130.

Adding to 11121251 its reverse (15212111), we get a palindrome (26333362).

The spelling of 11121251 in words is "eleven million, one hundred twenty-one thousand, two hundred fifty-one".