22211142 has 16 divisors (see below), whose sum is σ = 44498160. Its totient is φ = 7391072.

The previous prime is 22211141. The next prime is 22211153. The reversal of 22211142 is 24111222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211141) 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, 1084 + ... + 6752.

It is an arithmetic number, because the mean of its divisors is an integer number (2781135).

Almost surely, 2^22211142 is an apocalyptic number.

22211142 is an abundant number, since it is smaller than the sum of its proper divisors (22287018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22211142 is a wasteful number, since it uses less digits than its factorization.

22211142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327.

The product of its digits is 64, while the sum is 15.

The square root of 22211142 is about 4712.8698263372. The cubic root of 22211142 is about 281.0974868921.

Adding to 22211142 its reverse (24111222), we get a palindrome (46322364).

The spelling of 22211142 in words is "twenty-two million, two hundred eleven thousand, one hundred forty-two".