201012100020221 has 16 divisors (see below), whose sum is σ = 234160419435264. Its totient is φ = 168974573898624.

The previous prime is 201012100020161. The next prime is 201012100020233. The reversal of 201012100020221 is 122020001210102.

It is a cyclic number.

It is not a de Polignac number, because 201012100020221 - 2²² = 201012095825917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201012100020196 and 201012100020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012103020221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112319801 + ... + 114095406.

It is an arithmetic number, because the mean of its divisors is an integer number (14635026214704).

Almost surely, 2^{201012100020221} is an apocalyptic number.

It is an amenable number.

201012100020221 is a deficient number, since it is larger than the sum of its proper divisors (33148319415043).

201012100020221 is a wasteful number, since it uses less digits than its factorization.

201012100020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226417660.

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

Adding to 201012100020221 its reverse (122020001210102), we get a palindrome (323032101230323).

The spelling of 201012100020221 in words is "two hundred one trillion, twelve billion, one hundred million, twenty thousand, two hundred twenty-one".