22022146 has 8 divisors (see below), whose sum is σ = 33060240. Its totient is φ = 11002068.

The previous prime is 22022131. The next prime is 22022153. The reversal of 22022146 is 64122022.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (4132530).

Almost surely, 2^22022146 is an apocalyptic number.

22022146 is a deficient number, since it is larger than the sum of its proper divisors (11038094).

22022146 is a wasteful number, since it uses less digits than its factorization.

22022146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9008.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22022146 is about 4692.7759375449. The cubic root of 22022146 is about 280.2979226909.

Adding to 22022146 its reverse (64122022), we get a palindrome (86144168).

It can be divided in two parts, 220 and 22146, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 22022146 in words is "twenty-two million, twenty-two thousand, one hundred forty-six".