20002221099 has 12 divisors (see below), whose sum is σ = 33019539696. Its totient is φ = 11429840592.

The previous prime is 20002221067. The next prime is 20002221103. The reversal of 20002221099 is 99012220002.

It is not a de Polignac number, because 20002221099 - 2⁵ = 20002221067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002221599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158747724 + ... + 158747849.

It is an arithmetic number, because the mean of its divisors is an integer number (2751628308).

Almost surely, 2^20002221099 is an apocalyptic number.

20002221099 is a deficient number, since it is larger than the sum of its proper divisors (13017318597).

20002221099 is a wasteful number, since it uses less digits than its factorization.

20002221099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317495586 (or 317495583 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 20002221099 in words is "twenty billion, two million, two hundred twenty-one thousand, ninety-nine".