10211131212 has 24 divisors (see below), whose sum is σ = 23828302512. Its totient is φ = 3403377600.

The previous prime is 10211131201. The next prime is 10211131213. The reversal of 10211131212 is 21213111201.

It is a junction number, because it is equal to n+sod(n) for n = 10211131191 and 10211131200.

It is not an unprimeable number, because it can be changed into a prime (10211131213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107662 + ... + 178922.

It is an arithmetic number, because the mean of its divisors is an integer number (992845938).

Almost surely, 2^10211131212 is an apocalyptic number.

10211131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10211131212 is an abundant number, since it is smaller than the sum of its proper divisors (13617171300).

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

10211131212 is a wasteful number, since it uses less digits than its factorization.

10211131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83209 (or 83207 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10211131212 its reverse (21213111201), we get a palindrome (31424242413).

The spelling of 10211131212 in words is "ten billion, two hundred eleven million, one hundred thirty-one thousand, two hundred twelve".