1012212021112 has 8 divisors (see below), whose sum is σ = 1897897539600. Its totient is φ = 506106010552.

The previous prime is 1012212021071. The next prime is 1012212021131. The reversal of 1012212021112 is 2111202122101.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 63263251312 + ... + 63263251327.

It is an arithmetic number, because the mean of its divisors is an integer number (237237192450).

Almost surely, 2^{1012212021112} is an apocalyptic number.

It is an amenable number.

1012212021112 is a deficient number, since it is larger than the sum of its proper divisors (885685518488).

1012212021112 is a wasteful number, since it uses less digits than its factorization.

1012212021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126526502645 (or 126526502641 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1012212021112 its reverse (2111202122101), we get a palindrome (3123414143213).

The spelling of 1012212021112 in words is "one trillion, twelve billion, two hundred twelve million, twenty-one thousand, one hundred twelve".