1269220340115 has 160 divisors (see below), whose sum is σ = 2802517280640. Its totient is φ = 535147554816.

The previous prime is 1269220340057. The next prime is 1269220340177. The reversal of 1269220340115 is 5110430229621.

1269220340115 is a `hidden beast` number, since 1 + 26 + 9 + 220 + 3 + 401 + 1 + 5 = 666.

It is not a de Polignac number, because 1269220340115 - 2¹⁸ = 1269220077971 is a prime.

It is a super-2 number, since 2×1269220340115² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1269220340115.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 47492737 + ... + 47519453.

It is an arithmetic number, because the mean of its divisors is an integer number (17515733004).

Almost surely, 2^{1269220340115} is an apocalyptic number.

1269220340115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1269220340115 is an abundant number, since it is smaller than the sum of its proper divisors (1533296940525).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1269220340115 is a wasteful number, since it uses less digits than its factorization.

1269220340115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28043 (or 28034 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 1269220340115 its reverse (5110430229621), we get a palindrome (6379650569736).

The spelling of 1269220340115 in words is "one trillion, two hundred sixty-nine billion, two hundred twenty million, three hundred forty thousand, one hundred fifteen".