1210202212210 has 16 divisors (see below), whose sum is σ = 2178556061976. Its totient is φ = 484038200448.

The previous prime is 1210202212181. The next prime is 1210202212213. The reversal of 1210202212210 is 122122020121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 894267161649 + 315935050561 = 945657^2 + 562081^2 .

It is not an unprimeable number, because it can be changed into a prime (1210202212213) 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, 5216349 + ... + 5443408.

Almost surely, 2^{1210202212210} is an apocalyptic number.

1210202212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210202212210 is a deficient number, since it is larger than the sum of its proper divisors (968353849766).

1210202212210 is a wasteful number, since it uses less digits than its factorization.

1210202212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10671117.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210202212210 its reverse (122122020121), we get a palindrome (1332324232331).

The spelling of 1210202212210 in words is "one trillion, two hundred ten billion, two hundred two million, two hundred twelve thousand, two hundred ten".