1012100212244 has 18 divisors (see below), whose sum is σ = 1946829128202. Its totient is φ = 460045550800.

The previous prime is 1012100212169. The next prime is 1012100212261. The reversal of 1012100212244 is 4422120012101.

It can be written as a sum of positive squares in only one way, i.e., 999976000144 + 12124212100 = 999988^2 + 110110^2 .

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 5 ways as a sum of consecutive naturals, for example, 1045557587 + ... + 1045558554.

It is an arithmetic number, because the mean of its divisors is an integer number (108157173789).

Almost surely, 2^{1012100212244} is an apocalyptic number.

It is an amenable number.

1012100212244 is a deficient number, since it is larger than the sum of its proper divisors (934728915958).

1012100212244 is a wasteful number, since it uses less digits than its factorization.

1012100212244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091116167 (or 2091116154 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1012100212244 its reverse (4422120012101), we get a palindrome (5434220224345).

The spelling of 1012100212244 in words is "one trillion, twelve billion, one hundred million, two hundred twelve thousand, two hundred forty-four".