26220222 has 48 divisors (see below), whose sum is σ = 68751072. Its totient is φ = 7050240.

The previous prime is 26220211. The next prime is 26220223. The reversal of 26220222 is 22202262.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 26220195 and 26220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26220223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3979 + ... + 8262.

It is an arithmetic number, because the mean of its divisors is an integer number (1432314).

Almost surely, 2^26220222 is an apocalyptic number.

26220222 is an abundant number, since it is smaller than the sum of its proper divisors (42530850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26220222 is a wasteful number, since it uses less digits than its factorization.

26220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12273 (or 12270 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 26220222 is about 5120.5685231232. The cubic root of 26220222 is about 297.0836753658.

Adding to 26220222 its reverse (22202262), we get a palindrome (48422484).

The spelling of 26220222 in words is "twenty-six million, two hundred twenty thousand, two hundred twenty-two".