20022221099 has 2 divisors, whose sum is σ = 20022221100. Its totient is φ = 20022221098.

The previous prime is 20022221083. The next prime is 20022221143. The reversal of 20022221099 is 99012222002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20022221099 - 2⁴ = 20022221083 is a prime.

It is a super-4 number, since 4×20022221099⁴ (a number of 42 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (20022221029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011110549 + 10011110550.

It is an arithmetic number, because the mean of its divisors is an integer number (10011110550).

Almost surely, 2^20022221099 is an apocalyptic number.

20022221099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022221099 is an equidigital number, since it uses as much as digits as its factorization.

20022221099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 20022221099 in words is "twenty billion, twenty-two million, two hundred twenty-one thousand, ninety-nine".