1220404455001 has 8 divisors (see below), whose sum is σ = 1292742630144. Its totient is φ = 1148127355200.

The previous prime is 1220404454981. The next prime is 1220404455007. The reversal of 1220404455001 is 1005544040221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220404455001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220404455007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15227685 + ... + 15307618.

It is an arithmetic number, because the mean of its divisors is an integer number (161592828768).

Almost surely, 2^{1220404455001} is an apocalyptic number.

It is an amenable number.

1220404455001 is a deficient number, since it is larger than the sum of its proper divisors (72338175143).

1220404455001 is a wasteful number, since it uses less digits than its factorization.

1220404455001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30537671.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 1220404455001 its reverse (1005544040221), we get a palindrome (2225948495222).

The spelling of 1220404455001 in words is "one trillion, two hundred twenty billion, four hundred four million, four hundred fifty-five thousand, one".