10001221122099 has 16 divisors (see below), whose sum is σ = 13393926374400. Its totient is φ = 6638005717056.

The previous prime is 10001221122091. The next prime is 10001221122157. The reversal of 10001221122099 is 99022112210001.

10001221122099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10001221122099 - 2³ = 10001221122091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10001221122091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4501522 + ... + 6345560.

It is an arithmetic number, because the mean of its divisors is an integer number (837120398400).

Almost surely, 2^{10001221122099} is an apocalyptic number.

10001221122099 is a deficient number, since it is larger than the sum of its proper divisors (3392705252301).

10001221122099 is a wasteful number, since it uses less digits than its factorization.

10001221122099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852034.

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

The spelling of 10001221122099 in words is "ten trillion, one billion, two hundred twenty-one million, one hundred twenty-two thousand, ninety-nine".