2131101333220 has 96 divisors (see below), whose sum is σ = 4573710489600. Its totient is φ = 833846853504.

The previous prime is 2131101333209. The next prime is 2131101333227. The reversal of 2131101333220 is 223331011312.

It is a super-2 number, since 2×2131101333220² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131101333191 and 2131101333200.

It is not an unprimeable number, because it can be changed into a prime (2131101333227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560371839 + ... + 560375641.

It is an arithmetic number, because the mean of its divisors is an integer number (47642817600).

Almost surely, 2^{2131101333220} is an apocalyptic number.

2131101333220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131101333220 is an abundant number, since it is smaller than the sum of its proper divisors (2442609156380).

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

2131101333220 is a wasteful number, since it uses less digits than its factorization.

2131101333220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097 (or 6095 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2131101333220 its reverse (223331011312), we get a palindrome (2354432344532).

The spelling of 2131101333220 in words is "two trillion, one hundred thirty-one billion, one hundred one million, three hundred thirty-three thousand, two hundred twenty".