1220416213365 has 32 divisors (see below), whose sum is σ = 2170037696640. Its totient is φ = 650765985408.

The previous prime is 1220416213363. The next prime is 1220416213369. The reversal of 1220416213365 is 5633126140221.

1220416213365 is a `hidden beast` number, since 1 + 2 + 20 + 4 + 1 + 621 + 3 + 3 + 6 + 5 = 666.

It is not a de Polignac number, because 1220416213365 - 2¹ = 1220416213363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220416213363) 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, 130552 + ... + 1567761.

It is an arithmetic number, because the mean of its divisors is an integer number (67813678020).

Almost surely, 2^{1220416213365} is an apocalyptic number.

1220416213365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1220416213365 is a deficient number, since it is larger than the sum of its proper divisors (949621483275).

1220416213365 is a wasteful number, since it uses less digits than its factorization.

1220416213365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703650 (or 1703644 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 1220416213365 in words is "one trillion, two hundred twenty billion, four hundred sixteen million, two hundred thirteen thousand, three hundred sixty-five".