20021210020110 has 128 divisors (see below), whose sum is σ = 51823264711680. Its totient is φ = 4921051677696.

The previous prime is 20021210020103. The next prime is 20021210020169. The reversal of 20021210020110 is 1102001212002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 877842327 + ... + 877865133.

It is an arithmetic number, because the mean of its divisors is an integer number (404869255560).

Almost surely, 2^{20021210020110} is an apocalyptic number.

20021210020110 is an abundant number, since it is smaller than the sum of its proper divisors (31802054691570).

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

20021210020110 is a wasteful number, since it uses less digits than its factorization.

20021210020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26042.

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

Adding to 20021210020110 its reverse (1102001212002), we get a palindrome (21123211232112).

The spelling of 20021210020110 in words is "twenty trillion, twenty-one billion, two hundred ten million, twenty thousand, one hundred ten".