1021354451212 has 6 divisors (see below), whose sum is σ = 1787370289628. Its totient is φ = 510677225604.

The previous prime is 1021354451197. The next prime is 1021354451269. The reversal of 1021354451212 is 2121544531201.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 127669306398 + ... + 127669306405.

Almost surely, 2^{1021354451212} is an apocalyptic number.

It is an amenable number.

1021354451212 is a deficient number, since it is larger than the sum of its proper divisors (766015838416).

1021354451212 is a wasteful number, since it uses less digits than its factorization.

1021354451212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255338612807 (or 255338612805 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 1021354451212 its reverse (2121544531201), we get a palindrome (3142898982413).

The spelling of 1021354451212 in words is "one trillion, twenty-one billion, three hundred fifty-four million, four hundred fifty-one thousand, two hundred twelve".