1220348752515 has 32 divisors (see below), whose sum is σ = 2169555451200. Its totient is φ = 650838700800.

The previous prime is 1220348752501. The next prime is 1220348752517. The reversal of 1220348752515 is 5152578430221.

1220348752515 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 3 + 4 + 87 + 52 + 515 = 666.

It is not a de Polignac number, because 1220348752515 - 2¹³ = 1220348744323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1220348752517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10445041 + ... + 10561229.

It is an arithmetic number, because the mean of its divisors is an integer number (67798607850).

Almost surely, 2^{1220348752515} is an apocalyptic number.

1220348752515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220348752515 is a deficient number, since it is larger than the sum of its proper divisors (949206698685).

1220348752515 is a wasteful number, since it uses less digits than its factorization.

1220348752515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194004 (or 193998 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 1220348752515 in words is "one trillion, two hundred twenty billion, three hundred forty-eight million, seven hundred fifty-two thousand, five hundred fifteen".