1221102200099 has 4 divisors (see below), whose sum is σ = 1223445966840. Its totient is φ = 1218758433360.

The previous prime is 1221102200089. The next prime is 1221102200113. The reversal of 1221102200099 is 9900022011221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1221102200099 - 2⁴ = 1221102200083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221102200089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1171882589 + ... + 1171883630.

It is an arithmetic number, because the mean of its divisors is an integer number (305861491710).

Almost surely, 2^{1221102200099} is an apocalyptic number.

1221102200099 is a deficient number, since it is larger than the sum of its proper divisors (2343766741).

1221102200099 is an equidigital number, since it uses as much as digits as its factorization.

1221102200099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343766740.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 1221102200099 in words is "one trillion, two hundred twenty-one billion, one hundred two million, two hundred thousand, ninety-nine".