1210210221122 has 36 divisors (see below), whose sum is σ = 2141855282790. Its totient is φ = 511356222720.

The previous prime is 1210210221119. The next prime is 1210210221133. The reversal of 1210210221122 is 2211220120121.

It can be written as a sum of positive squares in only one way, i.e., 702979956721 + 507230264401 = 838439^2 + 712201^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1210210221122.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 730847 + ... + 1718882.

Almost surely, 2^{1210210221122} is an apocalyptic number.

1210210221122 is a deficient number, since it is larger than the sum of its proper divisors (931645061668).

1210210221122 is an equidigital number, since it uses as much as digits as its factorization.

1210210221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449887 (or 2449809 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1210210221122 its reverse (2211220120121), we get a palindrome (3421430341243).

The spelling of 1210210221122 in words is "one trillion, two hundred ten billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-two".