221222201220099 has 12 divisors (see below), whose sum is σ = 320633770600416. Its totient is φ = 146978117759952.

The previous prime is 221222201220091. The next prime is 221222201220143. The reversal of 221222201220099 is 990022102222122.

221222201220099 is a `hidden beast` number, since 2 + 2 + 1 + 222 + 201 + 220 + 0 + 9 + 9 = 666.

It is not a de Polignac number, because 221222201220099 - 2³ = 221222201220091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221222201220091) 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, 41945807227 + ... + 41945812500.

It is an arithmetic number, because the mean of its divisors is an integer number (26719480883368).

Almost surely, 2^{221222201220099} is an apocalyptic number.

221222201220099 is a deficient number, since it is larger than the sum of its proper divisors (99411569380317).

221222201220099 is a wasteful number, since it uses less digits than its factorization.

221222201220099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83891620026 (or 83891620023 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 221222201220099 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred one million, two hundred twenty thousand, ninety-nine".