1212102021122 has 8 divisors (see below), whose sum is σ = 1880847963900. Its totient is φ = 585152699824.

The previous prime is 1212102021073. The next prime is 1212102021133. The reversal of 1212102021122 is 2211202012121.

It can be written as a sum of positive squares in 2 ways, for example, as 1089182362321 + 122919658801 = 1043639^2 + 350599^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212102021122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10449155297 + ... + 10449155412.

Almost surely, 2^{1212102021122} is an apocalyptic number.

1212102021122 is a deficient number, since it is larger than the sum of its proper divisors (668745942778).

1212102021122 is a wasteful number, since it uses less digits than its factorization.

1212102021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20898310740.

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

Adding to 1212102021122 its reverse (2211202012121), we get a palindrome (3423304033243).

Subtracting 1212102021122 from its reverse (2211202012121), we obtain a palindrome (999099990999).

The spelling of 1212102021122 in words is "one trillion, two hundred twelve billion, one hundred two million, twenty-one thousand, one hundred twenty-two".