1012111132212 has 36 divisors (see below), whose sum is σ = 2559119784676. Its totient is φ = 337274409600.

The previous prime is 1012111132189. The next prime is 1012111132217. The reversal of 1012111132212 is 2122311112101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 684531188496 + 327579943716 = 827364^2 + 572346^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012111132217) by changing a digit.

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, 3870289 + ... + 4123512.

Almost surely, 2^{1012111132212} is an apocalyptic number.

1012111132212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012111132212 is an abundant number, since it is smaller than the sum of its proper divisors (1547008652464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012111132212 is a wasteful number, since it uses less digits than its factorization.

1012111132212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7997328 (or 7997323 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1012111132212 its reverse (2122311112101), we get a palindrome (3134422244313).

The spelling of 1012111132212 in words is "one trillion, twelve billion, one hundred eleven million, one hundred thirty-two thousand, two hundred twelve".