201200211222021 has 48 divisors (see below), whose sum is σ = 335161532946240. Its totient is φ = 115025851042560.

The previous prime is 201200211222011. The next prime is 201200211222053. The reversal of 201200211222021 is 120222112002102.

It is a happy number.

201200211222021 is a `hidden beast` number, since 201 + 200 + 21 + 1 + 2 + 220 + 21 = 666.

It is not a de Polignac number, because 201200211222021 - 2¹³ = 201200211213829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201200211221985 and 201200211222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200211222011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 229099266 + ... + 229975811.

It is an arithmetic number, because the mean of its divisors is an integer number (6982531936380).

Almost surely, 2^{201200211222021} is an apocalyptic number.

It is an amenable number.

201200211222021 is a deficient number, since it is larger than the sum of its proper divisors (133961321724219).

201200211222021 is a wasteful number, since it uses less digits than its factorization.

201200211222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459075346 (or 459075343 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201200211222021 its reverse (120222112002102), we get a palindrome (321422323224123).

The spelling of 201200211222021 in words is "two hundred one trillion, two hundred billion, two hundred eleven million, two hundred twenty-two thousand, twenty-one".