1210102112122 has 4 divisors (see below), whose sum is σ = 1815153168186. Its totient is φ = 605051056060.

The previous prime is 1210102112113. The next prime is 1210102112231. The reversal of 1210102112122 is 2212112010121.

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., 832566827401 + 377535284721 = 912451^2 + 614439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210102112096 and 1210102112105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302525528029 + ... + 302525528032.

Almost surely, 2^{1210102112122} is an apocalyptic number.

1210102112122 is a deficient number, since it is larger than the sum of its proper divisors (605051056064).

1210102112122 is an equidigital number, since it uses as much as digits as its factorization.

1210102112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605051056063.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1210102112122 its reverse (2212112010121), we get a palindrome (3422214122243).

The spelling of 1210102112122 in words is "one trillion, two hundred ten billion, one hundred two million, one hundred twelve thousand, one hundred twenty-two".