21020200212201 has 8 divisors (see below), whose sum is σ = 28030801029504. Its totient is φ = 14011533101520.

The previous prime is 21020200212163. The next prime is 21020200212241. The reversal of 21020200212201 is 10221200202012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21020200212201 - 2³⁴ = 21003020343017 is a prime.

It is a super-2 number, since 2×21020200212201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21020200212241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483401290 + ... + 483444771.

It is an arithmetic number, because the mean of its divisors is an integer number (3503850128688).

Almost surely, 2^{21020200212201} is an apocalyptic number.

It is an amenable number.

21020200212201 is a deficient number, since it is larger than the sum of its proper divisors (7010600817303).

21020200212201 is an equidigital number, since it uses as much as digits as its factorization.

21020200212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966853311.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21020200212201 its reverse (10221200202012), we get a palindrome (31241400414213).

The spelling of 21020200212201 in words is "twenty-one trillion, twenty billion, two hundred million, two hundred twelve thousand, two hundred one".