1210101220210 has 16 divisors (see below), whose sum is σ = 2183507832600. Its totient is φ = 482857013376.

The previous prime is 1210101220199. The next prime is 1210101220241. The reversal of 1210101220210 is 120221010121.

It can be written as a sum of positive squares in 4 ways, for example, as 1196641275921 + 13459944289 = 1093911^2 + 116017^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147930045 + ... + 147938224.

Almost surely, 2^{1210101220210} is an apocalyptic number.

1210101220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210101220210 is a deficient number, since it is larger than the sum of its proper divisors (973406612390).

1210101220210 is a wasteful number, since it uses less digits than its factorization.

1210101220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295868685.

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

Adding to 1210101220210 its reverse (120221010121), we get a palindrome (1330322230331).

The spelling of 1210101220210 in words is "one trillion, two hundred ten billion, one hundred one million, two hundred twenty thousand, two hundred ten".