1220441502040 has 32 divisors (see below), whose sum is σ = 2746548459360. Its totient is φ = 488077920000.

The previous prime is 1220441502029. The next prime is 1220441502061. The reversal of 1220441502040 is 402051440221.

It is a junction number, because it is equal to n+sod(n) for n = 1220441501996 and 1220441502014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2883261 + ... + 3279340.

It is an arithmetic number, because the mean of its divisors is an integer number (85829639355).

Almost surely, 2^{1220441502040} is an apocalyptic number.

1220441502040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220441502040 is an abundant number, since it is smaller than the sum of its proper divisors (1526106957320).

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

1220441502040 is a wasteful number, since it uses less digits than its factorization.

1220441502040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167563 (or 6167559 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 1220441502040 its reverse (402051440221), we get a palindrome (1622492942261).

The spelling of 1220441502040 in words is "one trillion, two hundred twenty billion, four hundred forty-one million, five hundred two thousand, forty".