2101102102 has 16 divisors (see below), whose sum is σ = 3439761552. Its totient is φ = 954603520.

The previous prime is 2101102093. The next prime is 2101102123. The reversal of 2101102102 is 2012011012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28998 + ... + 71014.

It is an arithmetic number, because the mean of its divisors is an integer number (214985097).

Almost surely, 2^2101102102 is an apocalyptic number.

2101102102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101102102 is a deficient number, since it is larger than the sum of its proper divisors (1338659450).

2101102102 is a wasteful number, since it uses less digits than its factorization.

2101102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44303.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2101102102 is about 45837.7802909347. The cubic root of 2101102102 is about 1280.8031462633.

Adding to 2101102102 its reverse (2012011012), we get a palindrome (4113113114).

It can be divided in two parts, 210110 and 2102, that added together give a palindrome (212212).

The spelling of 2101102102 in words is "two billion, one hundred one million, one hundred two thousand, one hundred two".