12021102020203 has 4 divisors (see below), whose sum is σ = 12173267868640. Its totient is φ = 11868936171768.

The previous prime is 12021102020201. The next prime is 12021102020231. The reversal of 12021102020203 is 30202020112021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12021102020203 - 2¹ = 12021102020201 is a prime.

It is a super-2 number, since 2×12021102020203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021102020201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76082924100 + ... + 76082924257.

It is an arithmetic number, because the mean of its divisors is an integer number (3043316967160).

Almost surely, 2^{12021102020203} is an apocalyptic number.

12021102020203 is a deficient number, since it is larger than the sum of its proper divisors (152165848437).

12021102020203 is an equidigital number, since it uses as much as digits as its factorization.

12021102020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152165848436.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12021102020203 its reverse (30202020112021), we get a palindrome (42223122132224).

The spelling of 12021102020203 in words is "twelve trillion, twenty-one billion, one hundred two million, twenty thousand, two hundred three".