12026555522 has 4 divisors (see below), whose sum is σ = 18039833286. Its totient is φ = 6013277760.

The previous prime is 12026555521. The next prime is 12026555557. The reversal of 12026555522 is 22555562021.

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

It can be written as a sum of positive squares in only one way, i.e., 11092091761 + 934463761 = 105319^2 + 30569^2 .

It is a super-3 number, since 3×12026555522³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12026555521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3006638879 + ... + 3006638882.

Almost surely, 2^12026555522 is an apocalyptic number.

12026555522 is a deficient number, since it is larger than the sum of its proper divisors (6013277764).

12026555522 is an equidigital number, since it uses as much as digits as its factorization.

12026555522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6013277763.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 12026555522 in words is "twelve billion, twenty-six million, five hundred fifty-five thousand, five hundred twenty-two".