1220332230201 has 16 divisors (see below), whose sum is σ = 1902799314944. Its totient is φ = 681115662864.

The previous prime is 1220332230197. The next prime is 1220332230211. The reversal of 1220332230201 is 1020322330221.

It is a happy number.

It is not a de Polignac number, because 1220332230201 - 2² = 1220332230197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220332230211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 675709081 + ... + 675710886.

It is an arithmetic number, because the mean of its divisors is an integer number (118924957184).

Almost surely, 2^{1220332230201} is an apocalyptic number.

It is an amenable number.

1220332230201 is a deficient number, since it is larger than the sum of its proper divisors (682467084743).

1220332230201 is a wasteful number, since it uses less digits than its factorization.

1220332230201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351420020.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220332230201 its reverse (1020322330221), we get a palindrome (2240654560422).

The spelling of 1220332230201 in words is "one trillion, two hundred twenty billion, three hundred thirty-two million, two hundred thirty thousand, two hundred one".