1220231032401 has 16 divisors (see below), whose sum is σ = 1627805906496. Its totient is φ = 813071863296.

The previous prime is 1220231032369. The next prime is 1220231032411. The reversal of 1220231032401 is 1042301320221.

It is not a de Polignac number, because 1220231032401 - 2⁵ = 1220231032369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220231032411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90027241 + ... + 90040793.

It is an arithmetic number, because the mean of its divisors is an integer number (101737869156).

Almost surely, 2^{1220231032401} is an apocalyptic number.

It is an amenable number.

1220231032401 is a deficient number, since it is larger than the sum of its proper divisors (407574874095).

1220231032401 is a wasteful number, since it uses less digits than its factorization.

1220231032401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26672.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1220231032401 its reverse (1042301320221), we get a palindrome (2262532352622).

The spelling of 1220231032401 in words is "one trillion, two hundred twenty billion, two hundred thirty-one million, thirty-two thousand, four hundred one".