22142001 has 8 divisors (see below), whose sum is σ = 33740224. Its totient is φ = 12652560.

The previous prime is 22141981. The next prime is 22142023. The reversal of 22142001 is 10024122.

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

It is not a de Polignac number, because 22142001 - 2⁶ = 22141937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22142101) 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, 527170 + ... + 527211.

It is an arithmetic number, because the mean of its divisors is an integer number (4217528).

Almost surely, 2^22142001 is an apocalyptic number.

22142001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22142001 is a deficient number, since it is larger than the sum of its proper divisors (11598223).

22142001 is a wasteful number, since it uses less digits than its factorization.

22142001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054391.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 22142001 is about 4705.5287694371. The cubic root of 22142001 is about 280.8055078627.

Adding to 22142001 its reverse (10024122), we get a palindrome (32166123).

The spelling of 22142001 in words is "twenty-two million, one hundred forty-two thousand, one".