220120111010 has 32 divisors (see below), whose sum is σ = 404936676144. Its totient is φ = 86126112000.

The previous prime is 220120111009. The next prime is 220120111039. The reversal of 220120111010 is 10111021022.

It can be written as a sum of positive squares in 8 ways, for example, as 625050001 + 219495061009 = 25001^2 + 468503^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220120110982 and 220120111000.

It is an unprimeable number.

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, 886421 + ... + 1107240.

Almost surely, 2^220120111010 is an apocalyptic number.

220120111010 is a deficient number, since it is larger than the sum of its proper divisors (184816565134).

220120111010 is a wasteful number, since it uses less digits than its factorization.

220120111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993910.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 220120111010 its reverse (10111021022), we get a palindrome (230231132032).

The spelling of 220120111010 in words is "two hundred twenty billion, one hundred twenty million, one hundred eleven thousand, ten".