12021203220099 has 64 divisors (see below), whose sum is σ = 17816025937920. Its totient is φ = 7180358400000.

The previous prime is 12021203220073. The next prime is 12021203220109. The reversal of 12021203220099 is 99002230212021.

It is a happy number.

It is not a de Polignac number, because 12021203220099 - 2¹³ = 12021203211907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021203220029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23176599 + ... + 23689599.

It is an arithmetic number, because the mean of its divisors is an integer number (278375405280).

Almost surely, 2^{12021203220099} is an apocalyptic number.

12021203220099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12021203220099 is a deficient number, since it is larger than the sum of its proper divisors (5794822717821).

12021203220099 is a wasteful number, since it uses less digits than its factorization.

12021203220099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513372.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 12021203220099 in words is "twelve trillion, twenty-one billion, two hundred three million, two hundred twenty thousand, ninety-nine".