1211220200210 has 96 divisors (see below), whose sum is σ = 2340580536000. Its totient is φ = 451156003200.

The previous prime is 1211220200147. The next prime is 1211220200213. The reversal of 1211220200210 is 120020221121.

It is not an unprimeable number, because it can be changed into a prime (1211220200213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50668841 + ... + 50692739.

It is an arithmetic number, because the mean of its divisors is an integer number (24381047250).

Almost surely, 2^{1211220200210} is an apocalyptic number.

1211220200210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211220200210 is a deficient number, since it is larger than the sum of its proper divisors (1129360335790).

1211220200210 is a wasteful number, since it uses less digits than its factorization.

1211220200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24184 (or 24165 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1211220200210 its reverse (120020221121), we get a palindrome (1331240421331).

The spelling of 1211220200210 in words is "one trillion, two hundred eleven billion, two hundred twenty million, two hundred thousand, two hundred ten".