20120210 has 32 divisors (see below), whose sum is σ = 39921984. Its totient is φ = 7240000.

The previous prime is 20120207. The next prime is 20120213. The reversal of 20120210 is 1202102.

It is an interprime number because it is at equal distance from previous prime (20120207) and next prime (20120213).

It is not an unprimeable number, because it can be changed into a prime (20120213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10205 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (1247562).

Almost surely, 2^20120210 is an apocalyptic number.

20120210 is a deficient number, since it is larger than the sum of its proper divisors (19801774).

20120210 is a wasteful number, since it uses less digits than its factorization.

20120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930.

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

The square root of 20120210 is about 4485.5557069331. Note that the first 3 decimals coincide. The cubic root of 20120210 is about 271.9845092822.

Adding to 20120210 its reverse (1202102), we get a palindrome (21322312).

The spelling of 20120210 in words is "twenty million, one hundred twenty thousand, two hundred ten".