1220435130525 has 24 divisors (see below), whose sum is σ = 2173000398240. Its totient is φ = 600829602240.

The previous prime is 1220435130469. The next prime is 1220435130547. The reversal of 1220435130525 is 5250315340221.

It is not a de Polignac number, because 1220435130525 - 2¹¹ = 1220435128477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 625863195 + ... + 625865144.

It is an arithmetic number, because the mean of its divisors is an integer number (90541683260).

Almost surely, 2^{1220435130525} is an apocalyptic number.

1220435130525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1220435130525 is a deficient number, since it is larger than the sum of its proper divisors (952565267715).

1220435130525 is a wasteful number, since it uses less digits than its factorization.

1220435130525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251728365 (or 1251728360 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 1220435130525 in words is "one trillion, two hundred twenty billion, four hundred thirty-five million, one hundred thirty thousand, five hundred twenty-five".