2102111022020 has 12 divisors (see below), whose sum is σ = 4414433146284. Its totient is φ = 840844408800.

The previous prime is 2102111022019. The next prime is 2102111022113. The reversal of 2102111022020 is 202201112012.

It can be written as a sum of positive squares in 2 ways, for example, as 1105723753156 + 996387268864 = 1051534^2 + 998192^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2102111021986 and 2102111022004.

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 3 ways as a sum of consecutive naturals, for example, 52552775531 + ... + 52552775570.

It is an arithmetic number, because the mean of its divisors is an integer number (367869428857).

Almost surely, 2^{2102111022020} is an apocalyptic number.

2102111022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102111022020 is an abundant number, since it is smaller than the sum of its proper divisors (2312322124264).

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

2102111022020 is a wasteful number, since it uses less digits than its factorization.

2102111022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105105551110 (or 105105551108 counting only the distinct ones).

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

Adding to 2102111022020 its reverse (202201112012), we get a palindrome (2304312134032).

The spelling of 2102111022020 in words is "two trillion, one hundred two billion, one hundred eleven million, twenty-two thousand, twenty".