1210200210202 has 4 divisors (see below), whose sum is σ = 1815300315306. Its totient is φ = 605100105100.

The previous prime is 1210200210187. The next prime is 1210200210209. The reversal of 1210200210202 is 2020120020121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 610521886881 + 599678323321 = 781359^2 + 774389^2 .

It is not an unprimeable number, because it can be changed into a prime (1210200210209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302550052549 + ... + 302550052552.

Almost surely, 2^{1210200210202} is an apocalyptic number.

1210200210202 is a deficient number, since it is larger than the sum of its proper divisors (605100105104).

1210200210202 is an equidigital number, since it uses as much as digits as its factorization.

1210200210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605100105103.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1210200210202 its reverse (2020120020121), we get a palindrome (3230320230323).

The spelling of 1210200210202 in words is "one trillion, two hundred ten billion, two hundred million, two hundred ten thousand, two hundred two".