21000201120211 has 8 divisors (see below), whose sum is σ = 22105661996880. Its totient is φ = 19894758956928.

The previous prime is 21000201120209. The next prime is 21000201120281. The reversal of 21000201120211 is 11202110200012.

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

It is a cyclic number.

It is not a de Polignac number, because 21000201120211 - 2¹ = 21000201120209 is a prime.

It is a super-2 number, since 2×21000201120211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21000201120191 and 21000201120200.

It is not an unprimeable number, because it can be changed into a prime (21000201120281) 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, 2345026 + ... + 6891991.

It is an arithmetic number, because the mean of its divisors is an integer number (2763207749610).

Almost surely, 2^{21000201120211} is an apocalyptic number.

21000201120211 is a deficient number, since it is larger than the sum of its proper divisors (1105460876669).

21000201120211 is a wasteful number, since it uses less digits than its factorization.

21000201120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356693.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21000201120211 its reverse (11202110200012), we get a palindrome (32202311320223).

The spelling of 21000201120211 in words is "twenty-one trillion, two hundred one million, one hundred twenty thousand, two hundred eleven".