21201102012010 has 32 divisors (see below), whose sum is σ = 38307211776000. Its totient is φ = 8448207958080.

The previous prime is 21201102011927. The next prime is 21201102012011. The reversal of 21201102012010 is 1021020110212.

It is not an unprimeable number, because it can be changed into a prime (21201102012011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1729516 + ... + 6737464.

It is an arithmetic number, because the mean of its divisors is an integer number (1197100368000).

Almost surely, 2^{21201102012010} is an apocalyptic number.

21201102012010 is a deficient number, since it is larger than the sum of its proper divisors (17106109763990).

21201102012010 is a wasteful number, since it uses less digits than its factorization.

21201102012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009566.

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

Adding to 21201102012010 its reverse (1021020110212), we get a palindrome (22222122122222).

The spelling of 21201102012010 in words is "twenty-one trillion, two hundred one billion, one hundred two million, twelve thousand, ten".