1201121022099 has 16 divisors (see below), whose sum is σ = 1671741925280. Its totient is φ = 766333301760.

The previous prime is 1201121022089. The next prime is 1201121022131. The reversal of 1201121022099 is 9902201211021.

It is not a de Polignac number, because 1201121022099 - 2⁴ = 1201121022083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201121022019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88689214 + ... + 88702755.

It is an arithmetic number, because the mean of its divisors is an integer number (104483870330).

Almost surely, 2^{1201121022099} is an apocalyptic number.

1201121022099 is a deficient number, since it is larger than the sum of its proper divisors (470620903181).

1201121022099 is a wasteful number, since it uses less digits than its factorization.

1201121022099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177392070.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 1201121022099 in words is "one trillion, two hundred one billion, one hundred twenty-one million, twenty-two thousand, ninety-nine".