1122201122212 has 6 divisors (see below), whose sum is σ = 1963851963878. Its totient is φ = 561100561104.

The previous prime is 1122201122201. The next prime is 1122201122213. The reversal of 1122201122212 is 2122211022211.

It can be written as a sum of positive squares in only one way, i.e., 1057717630116 + 64483492096 = 1028454^2 + 253936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1122201122212.

It is not an unprimeable number, because it can be changed into a prime (1122201122213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140275140273 + ... + 140275140280.

Almost surely, 2^{1122201122212} is an apocalyptic number.

It is an amenable number.

1122201122212 is a deficient number, since it is larger than the sum of its proper divisors (841650841666).

1122201122212 is a wasteful number, since it uses less digits than its factorization.

1122201122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280550280557 (or 280550280555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1122201122212 its reverse (2122211022211), we get a palindrome (3244412144423).

The spelling of 1122201122212 in words is "one trillion, one hundred twenty-two billion, two hundred one million, one hundred twenty-two thousand, two hundred twelve".