11120621 has 4 divisors (see below), whose sum is σ = 11133312. Its totient is φ = 11107932.

The previous prime is 11120597. The next prime is 11120633. The reversal of 11120621 is 12602111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12602111 = 19 ⋅663269.

It is a cyclic number.

It is not a de Polignac number, because 11120621 - 2¹⁰ = 11119597 is a prime.

It is a super-2 number, since 2×11120621² = 247336422851282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120596 and 11120605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120321) 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, 4925 + ... + 6818.

It is an arithmetic number, because the mean of its divisors is an integer number (2783328).

Almost surely, 2^11120621 is an apocalyptic number.

It is an amenable number.

11120621 is a deficient number, since it is larger than the sum of its proper divisors (12691).

11120621 is an equidigital number, since it uses as much as digits as its factorization.

11120621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 11120621 is about 3334.7595115690. The cubic root of 11120621 is about 223.2079608698.

Adding to 11120621 its reverse (12602111), we get a palindrome (23722732).

The spelling of 11120621 in words is "eleven million, one hundred twenty thousand, six hundred twenty-one".