20101221110162 has 32 divisors (see below), whose sum is σ = 33636673889280. Its totient is φ = 8953290512640.

The previous prime is 20101221110161. The next prime is 20101221110207. The reversal of 20101221110162 is 26101112210102.

It is a super-3 number, since 3×20101221110162³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20101221110161) by changing a digit.

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, 13610789 + ... + 15015192.

It is an arithmetic number, because the mean of its divisors is an integer number (1051146059040).

Almost surely, 2^{20101221110162} is an apocalyptic number.

20101221110162 is a deficient number, since it is larger than the sum of its proper divisors (13535452779118).

20101221110162 is a wasteful number, since it uses less digits than its factorization.

20101221110162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28627106.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 20101221110162 its reverse (26101112210102), we get a palindrome (46202333320264).

The spelling of 20101221110162 in words is "twenty trillion, one hundred one billion, two hundred twenty-one million, one hundred ten thousand, one hundred sixty-two".