20100333311220 has 48 divisors (see below), whose sum is σ = 56293804103040. Its totient is φ = 5358863089536.

The previous prime is 20100333311213. The next prime is 20100333311231. The reversal of 20100333311220 is 2211333300102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38041480 + ... + 38566239.

It is an arithmetic number, because the mean of its divisors is an integer number (1172787585480).

Almost surely, 2^{20100333311220} is an apocalyptic number.

20100333311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100333311220 is an abundant number, since it is smaller than the sum of its proper divisors (36193470791820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100333311220 is a wasteful number, since it uses less digits than its factorization.

20100333311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76612104 (or 76612102 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20100333311220 its reverse (2211333300102), we get a palindrome (22311666611322).

The spelling of 20100333311220 in words is "twenty trillion, one hundred billion, three hundred thirty-three million, three hundred eleven thousand, two hundred twenty".