1220000015040 has 112 divisors (see below), whose sum is σ = 3873771670272. Its totient is φ = 325310524416.

The previous prime is 1220000014939. The next prime is 1220000015093. The reversal of 1220000015040 is 405100000221.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 in 15 ways as a sum of consecutive naturals, for example, 17078277 + ... + 17149563.

It is an arithmetic number, because the mean of its divisors is an integer number (34587247056).

Almost surely, 2^{1220000015040} is an apocalyptic number.

1220000015040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220000015040 is an abundant number, since it is smaller than the sum of its proper divisors (2653771655232).

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

1220000015040 is a wasteful number, since it uses less digits than its factorization.

1220000015040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89134 (or 89124 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 1220000015040 its reverse (405100000221), we get a palindrome (1625100015261).

The spelling of 1220000015040 in words is "one trillion, two hundred twenty billion, fifteen thousand, forty".