20212220102201 has 16 divisors (see below), whose sum is σ = 20872875978240. Its totient is φ = 19552106730240.

The previous prime is 20212220102131. The next prime is 20212220102213. The reversal of 20212220102201 is 10220102221202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212220102201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212220102201.

It is not an unprimeable number, because it can be changed into a prime (20212220102251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945413330 + ... + 945434708.

It is an arithmetic number, because the mean of its divisors is an integer number (1304554748640).

Almost surely, 2^{20212220102201} is an apocalyptic number.

It is an amenable number.

20212220102201 is a deficient number, since it is larger than the sum of its proper divisors (660655876039).

20212220102201 is a wasteful number, since it uses less digits than its factorization.

20212220102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32624.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20212220102201 its reverse (10220102221202), we get a palindrome (30432322323403).

The spelling of 20212220102201 in words is "twenty trillion, two hundred twelve billion, two hundred twenty million, one hundred two thousand, two hundred one".