20266222 has 4 divisors (see below), whose sum is σ = 30399336. Its totient is φ = 10133110.

The previous prime is 20266199. The next prime is 20266223. The reversal of 20266222 is 22266202.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20266193 and 20266202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20266223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066554 + ... + 5066557.

It is an arithmetic number, because the mean of its divisors is an integer number (7599834).

Almost surely, 2^20266222 is an apocalyptic number.

20266222 is a deficient number, since it is larger than the sum of its proper divisors (10133114).

20266222 is a wasteful number, since it uses less digits than its factorization.

20266222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10133113.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20266222 is about 4501.8020836105. The cubic root of 20266222 is about 272.6408530297.

The spelling of 20266222 in words is "twenty million, two hundred sixty-six thousand, two hundred twenty-two".