2101110220102 has 4 divisors (see below), whose sum is σ = 3151665330156. Its totient is φ = 1050555110050.

The previous prime is 2101110220073. The next prime is 2101110220103. The reversal of 2101110220102 is 2010220111012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101110220103) by changing a digit.

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 as a sum of consecutive naturals, namely, 525277555024 + ... + 525277555027.

It is an arithmetic number, because the mean of its divisors is an integer number (787916332539).

Almost surely, 2^{2101110220102} is an apocalyptic number.

2101110220102 is a deficient number, since it is larger than the sum of its proper divisors (1050555110054).

2101110220102 is a wasteful number, since it uses less digits than its factorization.

2101110220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050555110053.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101110220102 its reverse (2010220111012), we get a palindrome (4111330331114).

The spelling of 2101110220102 in words is "two trillion, one hundred one billion, one hundred ten million, two hundred twenty thousand, one hundred two".