2102111210 has 8 divisors (see below), whose sum is σ = 3783800196. Its totient is φ = 840844480.

The previous prime is 2102111191. The next prime is 2102111267. The reversal of 2102111210 is 121112012.

It can be written as a sum of positive squares in 2 ways, for example, as 2066338849 + 35772361 = 45457^2 + 5981^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2102111191 and 2102111200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105105551 + ... + 105105570.

Almost surely, 2^2102111210 is an apocalyptic number.

2102111210 is a deficient number, since it is larger than the sum of its proper divisors (1681688986).

2102111210 is a wasteful number, since it uses less digits than its factorization.

2102111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210211128.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2102111210 is about 45848.7863525306. The cubic root of 2102111210 is about 1281.0081595976.

Adding to 2102111210 its reverse (121112012), we get a palindrome (2223223222).

The spelling of 2102111210 in words is "two billion, one hundred two million, one hundred eleven thousand, two hundred ten".