221212020002099 has 6 divisors (see below), whose sum is σ = 257328268165764. Its totient is φ = 189610302858900.

The previous prime is 221212020002027. The next prime is 221212020002143. The reversal of 221212020002099 is 990200020212122.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-221212020002099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221212020002999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2257265510177 + ... + 2257265510274.

It is an arithmetic number, because the mean of its divisors is an integer number (42888044694294).

Almost surely, 2^{221212020002099} is an apocalyptic number.

221212020002099 is a deficient number, since it is larger than the sum of its proper divisors (36116248163665).

221212020002099 is an equidigital number, since it uses as much as digits as its factorization.

221212020002099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4514531020465 (or 4514531020458 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 221212020002099 in words is "two hundred twenty-one trillion, two hundred twelve billion, twenty million, two thousand, ninety-nine".