220031221001 has 8 divisors (see below), whose sum is σ = 232164592800. Its totient is φ = 207953127360.

The previous prime is 220031220979. The next prime is 220031221057. The reversal of 220031221001 is 100122130022.

It is a happy number.

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

It is not a de Polignac number, because 220031221001 - 2¹⁰ = 220031219977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220031224001) 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, 13811360 + ... + 13827281.

It is an arithmetic number, because the mean of its divisors is an integer number (29020574100).

Almost surely, 2^220031221001 is an apocalyptic number.

It is an amenable number.

220031221001 is a deficient number, since it is larger than the sum of its proper divisors (12133371799).

220031221001 is a wasteful number, since it uses less digits than its factorization.

220031221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27639079.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 220031221001 its reverse (100122130022), we get a palindrome (320153351023).

The spelling of 220031221001 in words is "two hundred twenty billion, thirty-one million, two hundred twenty-one thousand, one".