20012021201201 has 4 divisors (see below), whose sum is σ = 20116796181504. Its totient is φ = 19907246220900.

The previous prime is 20012021201171. The next prime is 20012021201203. The reversal of 20012021201201 is 10210212021002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20012021201201 - 2³⁸ = 19737143294257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012021201203) 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, 52387489865 + ... + 52387490246.

It is an arithmetic number, because the mean of its divisors is an integer number (5029199045376).

Almost surely, 2^{20012021201201} is an apocalyptic number.

It is an amenable number.

20012021201201 is a deficient number, since it is larger than the sum of its proper divisors (104774980303).

20012021201201 is a wasteful number, since it uses less digits than its factorization.

20012021201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104774980302.

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

Adding to 20012021201201 its reverse (10210212021002), we get a palindrome (30222233222203).

The spelling of 20012021201201 in words is "twenty trillion, twelve billion, twenty-one million, two hundred one thousand, two hundred one".