22161302 has 8 divisors (see below), whose sum is σ = 35197416. Its totient is φ = 10428832.

The previous prime is 22161289. The next prime is 22161313. The reversal of 22161302 is 20316122.

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

It is a super-2 number, since 2×22161302² = 982246612670408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325868 + ... + 325935.

It is an arithmetic number, because the mean of its divisors is an integer number (4399677).

Almost surely, 2^22161302 is an apocalyptic number.

22161302 is a deficient number, since it is larger than the sum of its proper divisors (13036114).

22161302 is a wasteful number, since it uses less digits than its factorization.

22161302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651822.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 22161302 is about 4707.5792080431. The cubic root of 22161302 is about 280.8870761164.

Adding to 22161302 its reverse (20316122), we get a palindrome (42477424).

The spelling of 22161302 in words is "twenty-two million, one hundred sixty-one thousand, three hundred two".