20021210210010 has 64 divisors (see below), whose sum is σ = 51148213084800. Its totient is φ = 5001158587392.

The previous prime is 20021210210009. The next prime is 20021210210017. The reversal of 20021210210010 is 1001201212002.

It is not an unprimeable number, because it can be changed into a prime (20021210210017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197280339 + ... + 197381798.

It is an arithmetic number, because the mean of its divisors is an integer number (799190829450).

Almost surely, 2^{20021210210010} is an apocalyptic number.

20021210210010 is an abundant number, since it is smaller than the sum of its proper divisors (31127002874790).

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

20021210210010 is a wasteful number, since it uses less digits than its factorization.

20021210210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394662255.

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

Adding to 20021210210010 its reverse (1001201212002), we get a palindrome (21022411422012).

The spelling of 20021210210010 in words is "twenty trillion, twenty-one billion, two hundred ten million, two hundred ten thousand, ten".