1020121101212 has 12 divisors (see below), whose sum is σ = 1793076298440. Its totient is φ = 507813587376.

The previous prime is 1020121101199. The next prime is 1020121101227. The reversal of 1020121101212 is 2121011210201.

It is a super-3 number, since 3×1020121101212³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 561739787 + ... + 561741602.

It is an arithmetic number, because the mean of its divisors is an integer number (149423024870).

Almost surely, 2^{1020121101212} is an apocalyptic number.

It is an amenable number.

1020121101212 is a deficient number, since it is larger than the sum of its proper divisors (772955197228).

1020121101212 is a wasteful number, since it uses less digits than its factorization.

1020121101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123481620 (or 1123481618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1020121101212 its reverse (2121011210201), we get a palindrome (3141132311413).

The spelling of 1020121101212 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred one thousand, two hundred twelve".