1212011022122 has 24 divisors (see below), whose sum is σ = 1888966865388. Its totient is φ = 583125799680.

The previous prime is 1212011022113. The next prime is 1212011022139. The reversal of 1212011022122 is 2212201102121.

It can be written as a sum of positive squares in 6 ways, for example, as 43560281521 + 1168450740601 = 208711^2 + 1080949^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1212011022122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2223773 + ... + 2714624.

Almost surely, 2^{1212011022122} is an apocalyptic number.

1212011022122 is a deficient number, since it is larger than the sum of its proper divisors (676955843266).

1212011022122 is an equidigital number, since it uses as much as digits as its factorization.

1212011022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938554 (or 4938513 counting only the distinct ones).

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

Adding to 1212011022122 its reverse (2212201102121), we get a palindrome (3424212124243).

The spelling of 1212011022122 in words is "one trillion, two hundred twelve billion, eleven million, twenty-two thousand, one hundred twenty-two".