1212370559929 has 9 divisors (see below), whose sum is σ = 1214865213933. Its totient is φ = 1209881024832.

The previous prime is 1212370559849. The next prime is 1212370559957. The reversal of 1212370559929 is 9299550732121.

It is a happy number.

The square root of 1212370559929 is 1101077.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 711180189225 + 501190370704 = 843315^2 + 707948^2 .

It is not a de Polignac number, because 1212370559929 - 2¹⁹ = 1212370035641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212370559929.

It is not an unprimeable number, because it can be changed into a prime (1212370559989) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 780662817 + ... + 780664369.

Almost surely, 2^{1212370559929} is an apocalyptic number.

1212370559929 is the 1101077-th square number.

1212370559929 is the 550539-th centered octagonal number.

It is an amenable number.

1212370559929 is a deficient number, since it is larger than the sum of its proper divisors (2494654004).

1212370559929 is an frugal number, since it uses more digits than its factorization.

1212370559929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 55.

The spelling of 1212370559929 in words is "one trillion, two hundred twelve billion, three hundred seventy million, five hundred fifty-nine thousand, nine hundred twenty-nine".