22214142 has 32 divisors (see below), whose sum is σ = 49865760. Its totient is φ = 7329600.

The previous prime is 22214131. The next prime is 22214147. The reversal of 22214142 is 24141222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214147) 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 15 ways as a sum of consecutive naturals, for example, 3418 + ... + 7490.

It is an arithmetic number, because the mean of its divisors is an integer number (1558305).

Almost surely, 2^22214142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22214142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24932880).

22214142 is an abundant number, since it is smaller than the sum of its proper divisors (27651618).

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

22214142 is a wasteful number, since it uses less digits than its factorization.

22214142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185 (or 4179 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 22214142 is about 4713.1880930003. The cubic root of 22214142 is about 281.1101420195.

Adding to 22214142 its reverse (24141222), we get a palindrome (46355364).

It can be divided in two parts, 2 and 2214142, that added together give a square (2214144 = 1488²).

The spelling of 22214142 in words is "twenty-two million, two hundred fourteen thousand, one hundred forty-two".