2101210 has 16 divisors (see below), whose sum is σ = 3981600. Its totient is φ = 796176.

The previous prime is 2101207. The next prime is 2101213. The reversal of 2101210 is 121012.

2101210 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (2101207) and next prime (2101213).

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2101193 and 2101202.

It is not an unprimeable number, because it can be changed into a prime (2101213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5340 + ... + 5719.

It is an arithmetic number, because the mean of its divisors is an integer number (248850).

2^2101210 is an apocalyptic number.

2101210 is a deficient number, since it is larger than the sum of its proper divisors (1880390).

2101210 is a wasteful number, since it uses less digits than its factorization.

2101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11085.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2101210 is about 1449.5551041613. Note that the first 3 decimals coincide. The cubic root of 2101210 is about 128.0825070270.

Adding to 2101210 its reverse (121012), we get a palindrome (2222222).

The spelling of 2101210 in words is "two million, one hundred one thousand, two hundred ten".