22071151 has 8 divisors (see below), whose sum is σ = 23451120. Its totient is φ = 20700288.

The previous prime is 22071121. The next prime is 22071157. The reversal of 22071151 is 15117022.

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

It is a de Polignac number, because none of the positive numbers 2^k-22071151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22071157) 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, 3105 + ... + 7333.

It is an arithmetic number, because the mean of its divisors is an integer number (2931390).

Almost surely, 2^22071151 is an apocalyptic number.

22071151 is a deficient number, since it is larger than the sum of its proper divisors (1379969).

22071151 is a wasteful number, since it uses less digits than its factorization.

22071151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 22071151 is about 4697.9943592984. The cubic root of 22071151 is about 280.5056805778.

Adding to 22071151 its reverse (15117022), we get a palindrome (37188173).

It can be divided in two parts, 22071 and 151, that added together give a palindrome (22222).

The spelling of 22071151 in words is "twenty-two million, seventy-one thousand, one hundred fifty-one".