22001135 has 16 divisors (see below), whose sum is σ = 28560000. Its totient is φ = 16174080.

The previous prime is 22001129. The next prime is 22001137. The reversal of 22001135 is 53110022.

It is a happy number.

It is not a de Polignac number, because 22001135 - 2⁶ = 22001071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001137) 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, 16991 + ... + 18239.

It is an arithmetic number, because the mean of its divisors is an integer number (1785000).

Almost surely, 2^22001135 is an apocalyptic number.

22001135 is a deficient number, since it is larger than the sum of its proper divisors (6558865).

22001135 is a wasteful number, since it uses less digits than its factorization.

22001135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 22001135 is about 4690.5367496695. The cubic root of 22001135 is about 280.2087516412.

Adding to 22001135 its reverse (53110022), we get a palindrome (75111157).

The spelling of 22001135 in words is "twenty-two million, one thousand, one hundred thirty-five".