22002142 has 8 divisors (see below), whose sum is σ = 33171336. Its totient is φ = 10945032.

The previous prime is 22002121. The next prime is 22002163. The reversal of 22002142 is 24120022.

It is an interprime number because it is at equal distance from previous prime (22002121) and next prime (22002163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×22002142³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 27528 + ... + 28315.

It is an arithmetic number, because the mean of its divisors is an integer number (4146417).

Almost surely, 2^22002142 is an apocalyptic number.

22002142 is a deficient number, since it is larger than the sum of its proper divisors (11169194).

22002142 is a wasteful number, since it uses less digits than its factorization.

22002142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56042.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 22002142 is about 4690.6440922330. The cubic root of 22002142 is about 280.2130266617.

Adding to 22002142 its reverse (24120022), we get a palindrome (46122164).

The spelling of 22002142 in words is "twenty-two million, two thousand, one hundred forty-two".