1220044443201 has 12 divisors (see below), whose sum is σ = 1771142131200. Its totient is φ = 809275709880.

The previous prime is 1220044443187. The next prime is 1220044443221. The reversal of 1220044443201 is 1023444400221.

1220044443201 is a `hidden beast` number, since 1 + 220 + 0 + 4 + 4 + 4 + 432 + 0 + 1 = 666.

It is not a de Polignac number, because 1220044443201 - 2⁵ = 1220044443169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220044443221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340602465 + ... + 340606046.

It is an arithmetic number, because the mean of its divisors is an integer number (147595177600).

Almost surely, 2^{1220044443201} is an apocalyptic number.

It is an amenable number.

1220044443201 is a deficient number, since it is larger than the sum of its proper divisors (551097687999).

1220044443201 is a wasteful number, since it uses less digits than its factorization.

1220044443201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681208716 (or 681208713 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 1220044443201 its reverse (1023444400221), we get a palindrome (2243488843422).

The spelling of 1220044443201 in words is "one trillion, two hundred twenty billion, forty-four million, four hundred forty-three thousand, two hundred one".