12020121020201 has 20 divisors (see below), whose sum is σ = 14023956809472. Its totient is φ = 10301993472456.

The previous prime is 12020121020107. The next prime is 12020121020207. The reversal of 12020121020201 is 10202012102021.

It is not a de Polignac number, because 12020121020201 - 2¹⁸ = 12020120758057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12020121020207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25948520 + ... + 26407686.

Almost surely, 2^{12020121020201} is an apocalyptic number.

It is an amenable number.

12020121020201 is a deficient number, since it is larger than the sum of its proper divisors (2003835789271).

12020121020201 is an frugal number, since it uses more digits than its factorization.

12020121020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470098 (or 470077 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12020121020201 its reverse (10202012102021), we get a palindrome (22222133122222).

It can be divided in two parts, 1202012102020 and 1, that added together give a palindrome (1202012102021).

The spelling of 12020121020201 in words is "twelve trillion, twenty billion, one hundred twenty-one million, twenty thousand, two hundred one".