1122202202121 has 128 divisors (see below), whose sum is σ = 2234534400000. Its totient is φ = 537555502080.

The previous prime is 1122202202117. The next prime is 1122202202137. The reversal of 1122202202121 is 1212022022211.

It is a happy number.

1122202202121 is a `hidden beast` number, since 1 + 12 + 220 + 220 + 212 + 1 = 666.

It is not a de Polignac number, because 1122202202121 - 2² = 1122202202117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122202202094 and 1122202202103.

It is not an unprimeable number, because it can be changed into a prime (1122202202171) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26384130 + ... + 26426628.

It is an arithmetic number, because the mean of its divisors is an integer number (17457300000).

Almost surely, 2^{1122202202121} is an apocalyptic number.

1122202202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122202202121 is a deficient number, since it is larger than the sum of its proper divisors (1112332197879).

1122202202121 is a wasteful number, since it uses less digits than its factorization.

1122202202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43516 (or 43510 counting only the distinct ones).

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

Adding to 1122202202121 its reverse (1212022022211), we get a palindrome (2334224224332).

The spelling of 1122202202121 in words is "one trillion, one hundred twenty-two billion, two hundred two million, two hundred two thousand, one hundred twenty-one".