22155010 has 8 divisors (see below), whose sum is σ = 39879036. Its totient is φ = 8862000.

The previous prime is 22154999. The next prime is 22155011. The reversal of 22155010 is 1055122.

It can be written as a sum of positive squares in 2 ways, for example, as 19686969 + 2468041 = 4437^2 + 1571^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22155011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107741 + ... + 1107760.

Almost surely, 2^22155010 is an apocalyptic number.

22155010 is a deficient number, since it is larger than the sum of its proper divisors (17724026).

22155010 is a wasteful number, since it uses less digits than its factorization.

22155010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215508.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 22155010 is about 4706.9108765729. The cubic root of 22155010 is about 280.8604906030.

It can be divided in two parts, 2215 and 5010, that added together give a square (7225 = 85²).

The spelling of 22155010 in words is "twenty-two million, one hundred fifty-five thousand, ten".