1220033321201 has 8 divisors (see below), whose sum is σ = 1292218236360. Its totient is φ = 1147894878208.

The previous prime is 1220033321173. The next prime is 1220033321233. The reversal of 1220033321201 is 1021233300221.

It can be written as a sum of positive squares in 4 ways, for example, as 950439759025 + 269593562176 = 974905^2 + 519224^2 .

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-1220033321201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220033321251) 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, 11563976 + ... + 11669001.

It is an arithmetic number, because the mean of its divisors is an integer number (161527279545).

Almost surely, 2^{1220033321201} is an apocalyptic number.

It is an amenable number.

1220033321201 is a deficient number, since it is larger than the sum of its proper divisors (72184915159).

1220033321201 is a wasteful number, since it uses less digits than its factorization.

1220033321201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23236083.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1220033321201 its reverse (1021233300221), we get a palindrome (2241266621422).

The spelling of 1220033321201 in words is "one trillion, two hundred twenty billion, thirty-three million, three hundred twenty-one thousand, two hundred one".