10131232212 has 144 divisors (see below), whose sum is σ = 28604721600. Its totient is φ = 3004646400.

The previous prime is 10131232159. The next prime is 10131232213. The reversal of 10131232212 is 21223213101.

It is a super-2 number, since 2×10131232212² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131232213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9639087 + ... + 9640137.

It is an arithmetic number, because the mean of its divisors is an integer number (198643900).

Almost surely, 2^10131232212 is an apocalyptic number.

10131232212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10131232212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14302360800).

10131232212 is an abundant number, since it is smaller than the sum of its proper divisors (18473489388).

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

10131232212 is a wasteful number, since it uses less digits than its factorization.

10131232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10131232212 its reverse (21223213101), we get a palindrome (31354445313).

The spelling of 10131232212 in words is "ten billion, one hundred thirty-one million, two hundred thirty-two thousand, two hundred twelve".