22071136 has 12 divisors (see below), whose sum is σ = 43452612. Its totient is φ = 11035552.

The previous prime is 22071121. The next prime is 22071157. The reversal of 22071136 is 63117022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344830 + ... + 344893.

It is an arithmetic number, because the mean of its divisors is an integer number (3621051).

Almost surely, 2^22071136 is an apocalyptic number.

It is an amenable number.

22071136 is a deficient number, since it is larger than the sum of its proper divisors (21381476).

22071136 is an equidigital number, since it uses as much as digits as its factorization.

22071136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689733 (or 689725 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 22071136 is about 4697.9927628722. The cubic root of 22071136 is about 280.5056170320.

Adding to 22071136 its reverse (63117022), we get a palindrome (85188158).

The spelling of 22071136 in words is "twenty-two million, seventy-one thousand, one hundred thirty-six".