121122343221121 has 24 divisors (see below), whose sum is σ = 133255018796480. Its totient is φ = 110011557633120.

The previous prime is 121122343221107. The next prime is 121122343221149.

121122343221121 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-121122343221121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121122343221121.

It is not an unprimeable number, because it can be changed into a prime (121122343221221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 836621686 + ... + 836766448.

Almost surely, 2^{121122343221121} is an apocalyptic number.

121122343221121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121122343221121 is a deficient number, since it is larger than the sum of its proper divisors (12132675575359).

121122343221121 is a wasteful number, since it uses less digits than its factorization.

121122343221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150997 (or 150986 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The spelling of 121122343221121 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, three hundred forty-three million, two hundred twenty-one thousand, one hundred twenty-one".