101212120210 has 16 divisors (see below), whose sum is σ = 192898394136. Its totient is φ = 38103386368.

The previous prime is 101212120169. The next prime is 101212120213. The reversal of 101212120210 is 12021212101.

It can be written as a sum of positive squares in 4 ways, for example, as 100951717441 + 260402769 = 317729^2 + 16137^2 .

It is not an unprimeable number, because it can be changed into a prime (101212120213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297682537 + ... + 297682876.

Almost surely, 2^101212120210 is an apocalyptic number.

101212120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101212120210 is a deficient number, since it is larger than the sum of its proper divisors (91686273926).

101212120210 is a wasteful number, since it uses less digits than its factorization.

101212120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595365437.

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

Adding to 101212120210 its reverse (12021212101), we get a palindrome (113233332311).

The spelling of 101212120210 in words is "one hundred one billion, two hundred twelve million, one hundred twenty thousand, two hundred ten".