21000201122010 has 64 divisors (see below), whose sum is σ = 56152181919744. Its totient is φ = 4982639592000.

The previous prime is 21000201121979. The next prime is 21000201122011. The reversal of 21000201122010 is 1022110200012.

It is not an unprimeable number, because it can be changed into a prime (21000201122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 676973566 + ... + 677004585.

It is an arithmetic number, because the mean of its divisors is an integer number (877377842496).

Almost surely, 2^{21000201122010} is an apocalyptic number.

21000201122010 is an abundant number, since it is smaller than the sum of its proper divisors (35151980797734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21000201122010 is a wasteful number, since it uses less digits than its factorization.

21000201122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353978219.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21000201122010 its reverse (1022110200012), we get a palindrome (22022311322022).

The spelling of 21000201122010 in words is "twenty-one trillion, two hundred one million, one hundred twenty-two thousand, ten".