212101131330 has 96 divisors (see below), whose sum is σ = 602070625728. Its totient is φ = 51377884800.

The previous prime is 212101131283. The next prime is 212101131371. The reversal of 212101131330 is 33131101212.

212101131330 is a `hidden beast` number, since 212 + 10 + 113 + 1 + 330 = 666.

It is a super-2 number, since 2×212101131330² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1180345 + ... + 1348115.

It is an arithmetic number, because the mean of its divisors is an integer number (6271569018).

Almost surely, 2^212101131330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212101131330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301035312864).

212101131330 is an abundant number, since it is smaller than the sum of its proper divisors (389969494398).

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

212101131330 is a wasteful number, since it uses less digits than its factorization.

212101131330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169072 (or 169069 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 212101131330 its reverse (33131101212), we get a palindrome (245232232542).

The spelling of 212101131330 in words is "two hundred twelve billion, one hundred one million, one hundred thirty-one thousand, three hundred thirty".