20212201220101 has 16 divisors (see below), whose sum is σ = 22761171542016. Its totient is φ = 17781825150000.

The previous prime is 20212201220093. The next prime is 20212201220111. The reversal of 20212201220101 is 10102210221202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20212201220101 - 2³ = 20212201220093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212201220111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46949776 + ... + 47378326.

It is an arithmetic number, because the mean of its divisors is an integer number (1422573221376).

Almost surely, 2^{20212201220101} is an apocalyptic number.

It is an amenable number.

20212201220101 is a deficient number, since it is larger than the sum of its proper divisors (2548970321915).

20212201220101 is a wasteful number, since it uses less digits than its factorization.

20212201220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566904.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20212201220101 its reverse (10102210221202), we get a palindrome (30314411441303).

The spelling of 20212201220101 in words is "twenty trillion, two hundred twelve billion, two hundred one million, two hundred twenty thousand, one hundred one".