21000201011210 has 8 divisors (see below), whose sum is σ = 37800361820196. Its totient is φ = 8400080404480.

The previous prime is 21000201011149. The next prime is 21000201011213. The reversal of 21000201011210 is 1211010200012.

It can be written as a sum of positive squares in 2 ways, for example, as 20637822294769 + 362378716441 = 4542887^2 + 601979^2 .

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

It is a super-2 number, since 2×21000201011210² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21000201011191 and 21000201011200.

It is not an unprimeable number, because it can be changed into a prime (21000201011213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050010050551 + ... + 1050010050570.

Almost surely, 2^{21000201011210} is an apocalyptic number.

21000201011210 is a deficient number, since it is larger than the sum of its proper divisors (16800160808986).

21000201011210 is a wasteful number, since it uses less digits than its factorization.

21000201011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100020101128.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21000201011210 its reverse (1211010200012), we get a palindrome (22211211211222).

The spelling of 21000201011210 in words is "twenty-one trillion, two hundred one million, eleven thousand, two hundred ten".