1121202112122 has 12 divisors (see below), whose sum is σ = 2429271242970. Its totient is φ = 373734037368.

The previous prime is 1121202112099. The next prime is 1121202112127. The reversal of 1121202112122 is 2212112021211.

It can be written as a sum of positive squares in only one way, i.e., 594269850321 + 526932261801 = 770889^2 + 725901^2 .

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: 62289006229 = 1121202112122 / (1 + 1 + 2 + 1 + 2 + 0 + 2 + 1 + 1 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1121202112095 and 1121202112104.

It is not an unprimeable number, because it can be changed into a prime (1121202112127) 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, 31144503097 + ... + 31144503132.

Almost surely, 2^{1121202112122} is an apocalyptic number.

1121202112122 is an abundant number, since it is smaller than the sum of its proper divisors (1308069130848).

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

1121202112122 is a wasteful number, since it uses less digits than its factorization.

1121202112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62289006237 (or 62289006234 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1121202112122 its reverse (2212112021211), we get a palindrome (3333314133333).

The spelling of 1121202112122 in words is "one trillion, one hundred twenty-one billion, two hundred two million, one hundred twelve thousand, one hundred twenty-two".