1020212012122 has 16 divisors (see below), whose sum is σ = 1533961898280. Its totient is φ = 508891548672.

The previous prime is 1020212012093. The next prime is 1020212012123. The reversal of 1020212012122 is 2212102120201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 996680758921 + 23531253201 = 998339^2 + 153399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020212012096 and 1020212012105.

It is not an unprimeable number, because it can be changed into a prime (1020212012123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15306204 + ... + 15372712.

Almost surely, 2^{1020212012122} is an apocalyptic number.

1020212012122 is a deficient number, since it is larger than the sum of its proper divisors (513749886158).

1020212012122 is a wasteful number, since it uses less digits than its factorization.

1020212012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84657.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1020212012122 its reverse (2212102120201), we get a palindrome (3232314132323).

The spelling of 1020212012122 in words is "one trillion, twenty billion, two hundred twelve million, twelve thousand, one hundred twenty-two".