11220051 has 16 divisors (see below), whose sum is σ = 16675200. Its totient is φ = 6668928.

The previous prime is 11220037. The next prime is 11220073. The reversal of 11220051 is 15002211.

11220051 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11220051 - 2⁶ = 11219987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4821 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (1042200).

Almost surely, 2^11220051 is an apocalyptic number.

11220051 is a deficient number, since it is larger than the sum of its proper divisors (5455149).

11220051 is a wasteful number, since it uses less digits than its factorization.

11220051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11618.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 11220051 is about 3349.6344576685. The cubic root of 11220051 is about 223.8712256755.

Adding to 11220051 its reverse (15002211), we get a palindrome (26222262).

The spelling of 11220051 in words is "eleven million, two hundred twenty thousand, fifty-one".