1275220561052 has 6 divisors (see below), whose sum is σ = 2231635981848. Its totient is φ = 637610280524.

The previous prime is 1275220561019. The next prime is 1275220561063. The reversal of 1275220561052 is 2501650225721.

It is a junction number, because it is equal to n+sod(n) for n = 1275220560997 and 1275220561015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159402570128 + ... + 159402570135.

It is an arithmetic number, because the mean of its divisors is an integer number (371939330308).

Almost surely, 2^{1275220561052} is an apocalyptic number.

It is an amenable number.

1275220561052 is a deficient number, since it is larger than the sum of its proper divisors (956415420796).

1275220561052 is a wasteful number, since it uses less digits than its factorization.

1275220561052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318805140267 (or 318805140265 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

Adding to 1275220561052 its reverse (2501650225721), we get a palindrome (3776870786773).

The spelling of 1275220561052 in words is "one trillion, two hundred seventy-five billion, two hundred twenty million, five hundred sixty-one thousand, fifty-two".