20860222 has 16 divisors (see below), whose sum is σ = 32481360. Its totient is φ = 10035648.

The previous prime is 20860211. The next prime is 20860247. The reversal of 20860222 is 22206802.

It is a junction number, because it is equal to n+sod(n) for n = 20860193 and 20860202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26113 + ... + 26899.

It is an arithmetic number, because the mean of its divisors is an integer number (2030085).

Almost surely, 2^20860222 is an apocalyptic number.

20860222 is a deficient number, since it is larger than the sum of its proper divisors (11621138).

20860222 is a wasteful number, since it uses less digits than its factorization.

20860222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20860222 is about 4567.2992019354. The cubic root of 20860222 is about 275.2789324103.

The spelling of 20860222 in words is "twenty million, eight hundred sixty thousand, two hundred twenty-two".