22401011 has 4 divisors (see below), whose sum is σ = 23374992. Its totient is φ = 21427032.

The previous prime is 22400971. The next prime is 22401017. The reversal of 22401011 is 11010422.

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 22401011 - 2¹⁰ = 22399987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22400983 and 22401001.

It is not an unprimeable number, because it can be changed into a prime (22401017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486956 + ... + 487001.

It is an arithmetic number, because the mean of its divisors is an integer number (5843748).

Almost surely, 2^22401011 is an apocalyptic number.

22401011 is a deficient number, since it is larger than the sum of its proper divisors (973981).

22401011 is an equidigital number, since it uses as much as digits as its factorization.

22401011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973980.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 22401011 is about 4732.9706316435. The cubic root of 22401011 is about 281.8961901825.

Adding to 22401011 its reverse (11010422), we get a palindrome (33411433).

The spelling of 22401011 in words is "twenty-two million, four hundred one thousand, eleven".