20102220111000 has 128 divisors (see below), whose sum is σ = 62957404224000. Its totient is φ = 5340209340800.

The previous prime is 20102220110993. The next prime is 20102220111013. The reversal of 20102220111000 is 11102220102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11950050 + ... + 13528049.

It is an arithmetic number, because the mean of its divisors is an integer number (491854720500).

Almost surely, 2^{20102220111000} is an apocalyptic number.

20102220111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102220111000 is an abundant number, since it is smaller than the sum of its proper divisors (42855184113000).

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

20102220111000 is a wasteful number, since it uses less digits than its factorization.

20102220111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25478386 (or 25478372 counting only the distinct ones).

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

Adding to 20102220111000 its reverse (11102220102), we get a palindrome (20113322331102).

The spelling of 20102220111000 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred eleven thousand".