20102221012110 has 32 divisors (see below), whose sum is σ = 48924842130432. Its totient is φ = 5285090969760.

The previous prime is 20102221012091. The next prime is 20102221012157. The reversal of 20102221012110 is 1121012220102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20102221012110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4718829094 + ... + 4718833353.

It is an arithmetic number, because the mean of its divisors is an integer number (1528901316576).

Almost surely, 2^{20102221012110} is an apocalyptic number.

20102221012110 is an abundant number, since it is smaller than the sum of its proper divisors (28822621118322).

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

20102221012110 is a wasteful number, since it uses less digits than its factorization.

20102221012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437662528.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20102221012110 its reverse (1121012220102), we get a palindrome (21223233232212).

The spelling of 20102221012110 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, twelve thousand, one hundred ten".