1220544052446 has 8 divisors (see below), whose sum is σ = 2441088104904. Its totient is φ = 406848017480.

The previous prime is 1220544052433. The next prime is 1220544052447. The reversal of 1220544052446 is 6442504450221.

It is a sphenic number, since it is the product of 3 distinct primes.

1220544052446 is an admirable number.

It is a super-2 number, since 2×1220544052446² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220544052447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101712004365 + ... + 101712004376.

It is an arithmetic number, because the mean of its divisors is an integer number (305136013113).

Almost surely, 2^{1220544052446} is an apocalyptic number.

1220544052446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1220544052446 is a wasteful number, since it uses less digits than its factorization.

1220544052446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203424008746.

The product of its (nonzero) digits is 307200, while the sum is 39.

The spelling of 1220544052446 in words is "one trillion, two hundred twenty billion, five hundred forty-four million, fifty-two thousand, four hundred forty-six".