220331261870 has 8 divisors (see below), whose sum is σ = 396596271384. Its totient is φ = 88132504744.

The previous prime is 220331261827. The next prime is 220331261893. The reversal of 220331261870 is 78162133022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220331261870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11016563084 + ... + 11016563103.

It is an arithmetic number, because the mean of its divisors is an integer number (49574533923).

Almost surely, 2^220331261870 is an apocalyptic number.

220331261870 is a deficient number, since it is larger than the sum of its proper divisors (176265009514).

220331261870 is a wasteful number, since it uses less digits than its factorization.

220331261870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22033126194.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 220331261870 its reverse (78162133022), we get a palindrome (298493394892).

The spelling of 220331261870 in words is "two hundred twenty billion, three hundred thirty-one million, two hundred sixty-one thousand, eight hundred seventy".