220101221099 has 2 divisors, whose sum is σ = 220101221100. Its totient is φ = 220101221098.

The previous prime is 220101221063. The next prime is 220101221117. The reversal of 220101221099 is 990122101022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220101221099 - 2¹⁶ = 220101155563 is a prime.

It is not a weakly prime, because it can be changed into another prime (220101223099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050610549 + 110050610550.

It is an arithmetic number, because the mean of its divisors is an integer number (110050610550).

Almost surely, 2^220101221099 is an apocalyptic number.

220101221099 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101221099 is an equidigital number, since it uses as much as digits as its factorization.

220101221099 is an evil number, because the sum of its binary digits is even.

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

The spelling of 220101221099 in words is "two hundred twenty billion, one hundred one million, two hundred twenty-one thousand, ninety-nine".