20021210220010 has 64 divisors (see below), whose sum is σ = 38723318265600. Its totient is φ = 7433587510272.

The previous prime is 20021210220001. The next prime is 20021210220071. The reversal of 20021210220010 is 1002201212002.

It is a happy number.

It is an unprimeable number.

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, 121506 + ... + 6329074.

It is an arithmetic number, because the mean of its divisors is an integer number (605051847900).

Almost surely, 2^{20021210220010} is an apocalyptic number.

20021210220010 is a deficient number, since it is larger than the sum of its proper divisors (18702108045590).

20021210220010 is a wasteful number, since it uses less digits than its factorization.

20021210220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208015.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20021210220010 its reverse (1002201212002), we get a palindrome (21023411432012).

The spelling of 20021210220010 in words is "twenty trillion, twenty-one billion, two hundred ten million, two hundred twenty thousand, ten".