1202212102122 has 12 divisors (see below), whose sum is σ = 2604792887970. Its totient is φ = 400737367368.

The previous prime is 1202212102093. The next prime is 1202212102129. The reversal of 1202212102122 is 2212012122021.

It is a happy number.

1202212102122 is a `hidden beast` number, since 1 + 20 + 221 + 210 + 212 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 848887665201 + 353324436921 = 921351^2 + 594411^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 66789561229 = 1202212102122 / (1 + 2 + 0 + 2 + 2 + 1 + 2 + 1 + 0 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1202212102095 and 1202212102104.

It is not an unprimeable number, because it can be changed into a prime (1202212102129) 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, 33394780597 + ... + 33394780632.

Almost surely, 2^{1202212102122} is an apocalyptic number.

1202212102122 is an abundant number, since it is smaller than the sum of its proper divisors (1402580785848).

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

1202212102122 is a wasteful number, since it uses less digits than its factorization.

1202212102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66789561237 (or 66789561234 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1202212102122 its reverse (2212012122021), we get a palindrome (3414224224143).

The spelling of 1202212102122 in words is "one trillion, two hundred two billion, two hundred twelve million, one hundred two thousand, one hundred twenty-two".