2102111220102 has 8 divisors (see below), whose sum is σ = 4204222440216. Its totient is φ = 700703740032.

The previous prime is 2102111220101. The next prime is 2102111220107. The reversal of 2102111220102 is 2010221112012.

It is a sphenic number, since it is the product of 3 distinct primes.

2102111220102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102111220101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175175935003 + ... + 175175935014.

It is an arithmetic number, because the mean of its divisors is an integer number (525527805027).

Almost surely, 2^{2102111220102} is an apocalyptic number.

2102111220102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2102111220102 is a wasteful number, since it uses less digits than its factorization.

2102111220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350351870022.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2102111220102 its reverse (2010221112012), we get a palindrome (4112332332114).

The spelling of 2102111220102 in words is "two trillion, one hundred two billion, one hundred eleven million, two hundred twenty thousand, one hundred two".