2663223665122 has 4 divisors (see below), whose sum is σ = 3994835497686. Its totient is φ = 1331611832560.

The previous prime is 2663223665051. The next prime is 2663223665129. The reversal of 2663223665122 is 2215663223662.

It is a happy number.

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., 2653709418441 + 9514246681 = 1629021^2 + 97541^2 .

It is not an unprimeable number, because it can be changed into a prime (2663223665129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665805916279 + ... + 665805916282.

Almost surely, 2^{2663223665122} is an apocalyptic number.

2663223665122 is a deficient number, since it is larger than the sum of its proper divisors (1331611832564).

2663223665122 is a wasteful number, since it uses less digits than its factorization.

2663223665122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331611832563.

The product of its digits is 1866240, while the sum is 46.

Adding to 2663223665122 its reverse (2215663223662), we get a palindrome (4878886888784).

The spelling of 2663223665122 in words is "two trillion, six hundred sixty-three billion, two hundred twenty-three million, six hundred sixty-five thousand, one hundred twenty-two".