133223221221442 has 12 divisors (see below), whose sum is σ = 219653162262198. Its totient is φ = 60556009646000.

The previous prime is 133223221221439. The next prime is 133223221221443. The reversal of 133223221221442 is 244122122322331.

It can be written as a sum of positive squares in only one way, i.e., 132094312846441 + 1128908375001 = 11493229^2 + 1062501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133223221221398 and 133223221221407.

It is not an unprimeable number, because it can be changed into a prime (133223221221443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275254589059 + ... + 275254589542.

Almost surely, 2^{133223221221442} is an apocalyptic number.

133223221221442 is a deficient number, since it is larger than the sum of its proper divisors (86429941040756).

133223221221442 is a wasteful number, since it uses less digits than its factorization.

133223221221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550509178625 (or 550509178614 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

Adding to 133223221221442 its reverse (244122122322331), we get a palindrome (377345343543773).

The spelling of 133223221221442 in words is "one hundred thirty-three trillion, two hundred twenty-three billion, two hundred twenty-one million, two hundred twenty-one thousand, four hundred forty-two".