1210221331210 has 16 divisors (see below), whose sum is σ = 2181131658216. Its totient is φ = 483481140928.

The previous prime is 1210221331201. The next prime is 1210221331219. The reversal of 1210221331210 is 121331220121.

It is an interprime number because it is at equal distance from previous prime (1210221331201) and next prime (1210221331219).

It can be written as a sum of positive squares in 4 ways, for example, as 637076945241 + 573144385969 = 798171^2 + 757063^2 .

It is not an unprimeable number, because it can be changed into a prime (1210221331219) 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, 75915577 + ... + 75931516.

Almost surely, 2^{1210221331210} is an apocalyptic number.

1210221331210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210221331210 is a deficient number, since it is larger than the sum of its proper divisors (970910327006).

1210221331210 is a wasteful number, since it uses less digits than its factorization.

1210221331210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151847897.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1210221331210 its reverse (121331220121), we get a palindrome (1331552551331).

The spelling of 1210221331210 in words is "one trillion, two hundred ten billion, two hundred twenty-one million, three hundred thirty-one thousand, two hundred ten".