2101102110202 has 4 divisors (see below), whose sum is σ = 3151653165306. Its totient is φ = 1050551055100.

The previous prime is 2101102110193. The next prime is 2101102110259. The reversal of 2101102110202 is 2020112011012.

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

It can be written as a sum of positive squares in only one way, i.e., 2026355097001 + 74747013201 = 1423501^2 + 273399^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525275527549 + ... + 525275527552.

Almost surely, 2^{2101102110202} is an apocalyptic number.

2101102110202 is a deficient number, since it is larger than the sum of its proper divisors (1050551055104).

2101102110202 is a wasteful number, since it uses less digits than its factorization.

2101102110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050551055103.

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

Adding to 2101102110202 its reverse (2020112011012), we get a palindrome (4121214121214).

The spelling of 2101102110202 in words is "two trillion, one hundred one billion, one hundred two million, one hundred ten thousand, two hundred two".