1220431140201 has 64 divisors (see below), whose sum is σ = 2108330606592. Its totient is φ = 610305518592.

The previous prime is 1220431140191. The next prime is 1220431140223. The reversal of 1220431140201 is 1020411340221.

It is not a de Polignac number, because 1220431140201 - 2⁵ = 1220431140169 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220431140101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150505 + ... + 1569558.

It is an arithmetic number, because the mean of its divisors is an integer number (32942665728).

Almost surely, 2^{1220431140201} is an apocalyptic number.

It is an amenable number.

1220431140201 is a deficient number, since it is larger than the sum of its proper divisors (887899466391).

1220431140201 is a wasteful number, since it uses less digits than its factorization.

1220431140201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720222.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1220431140201 its reverse (1020411340221), we get a palindrome (2240842480422).

The spelling of 1220431140201 in words is "one trillion, two hundred twenty billion, four hundred thirty-one million, one hundred forty thousand, two hundred one".