1012420021012 has 6 divisors (see below), whose sum is σ = 1771735036778. Its totient is φ = 506210010504.

The previous prime is 1012420020973. The next prime is 1012420021031. The reversal of 1012420021012 is 2101200242101.

It can be written as a sum of positive squares in only one way, i.e., 752927585796 + 259492435216 = 867714^2 + 509404^2 .

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 as a sum of consecutive naturals, namely, 126552502623 + ... + 126552502630.

Almost surely, 2^{1012420021012} is an apocalyptic number.

It is an amenable number.

1012420021012 is a deficient number, since it is larger than the sum of its proper divisors (759315015766).

1012420021012 is a wasteful number, since it uses less digits than its factorization.

1012420021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253105005257 (or 253105005255 counting only the distinct ones).

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

Adding to 1012420021012 its reverse (2101200242101), we get a palindrome (3113620263113).

The spelling of 1012420021012 in words is "one trillion, twelve billion, four hundred twenty million, twenty-one thousand, twelve".