212144231020 has 96 divisors (see below), whose sum is σ = 456425057088. Its totient is φ = 82796593152.

The previous prime is 212144231003. The next prime is 212144231059. The reversal of 212144231020 is 20132441212.

It is a junction number, because it is equal to n+sod(n) for n = 212144230982 and 212144231000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247542432 + ... + 247543288.

It is an arithmetic number, because the mean of its divisors is an integer number (4754427678).

Almost surely, 2^212144231020 is an apocalyptic number.

212144231020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212144231020 is an abundant number, since it is smaller than the sum of its proper divisors (244280826068).

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

212144231020 is a wasteful number, since it uses less digits than its factorization.

212144231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212144231020 its reverse (20132441212), we get a palindrome (232276672232).

The spelling of 212144231020 in words is "two hundred twelve billion, one hundred forty-four million, two hundred thirty-one thousand, twenty".