2111102202020 has 96 divisors (see below), whose sum is σ = 5162555575296. Its totient is φ = 710164224000.

The previous prime is 2111102201993. The next prime is 2111102202067. The reversal of 2111102202020 is 202022011112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2111102201986 and 2111102202004.

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, 3116309 + ... + 3732771.

It is an arithmetic number, because the mean of its divisors is an integer number (53776620576).

Almost surely, 2^{2111102202020} is an apocalyptic number.

2111102202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111102202020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2581277787648).

2111102202020 is an abundant number, since it is smaller than the sum of its proper divisors (3051453373276).

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

2111102202020 is a wasteful number, since it uses less digits than its factorization.

2111102202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616941 (or 616939 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2111102202020 its reverse (202022011112), we get a palindrome (2313124213132).

The spelling of 2111102202020 in words is "two trillion, one hundred eleven billion, one hundred two million, two hundred two thousand, twenty".