26001222 has 16 divisors (see below), whose sum is σ = 56002800. Its totient is φ = 8000352.

The previous prime is 26001221. The next prime is 26001233. The reversal of 26001222 is 22210062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26001221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166597 + ... + 166752.

It is an arithmetic number, because the mean of its divisors is an integer number (3500175).

Almost surely, 2^26001222 is an apocalyptic number.

26001222 is an abundant number, since it is smaller than the sum of its proper divisors (30001578).

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

26001222 is a wasteful number, since it uses less digits than its factorization.

26001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333367.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 26001222 is about 5099.1393391434. The cubic root of 26001222 is about 296.2542480119.

Adding to 26001222 its reverse (22210062), we get a palindrome (48211284).

The spelling of 26001222 in words is "twenty-six million, one thousand, two hundred twenty-two".