212144231002 has 16 divisors (see below), whose sum is σ = 352326377952. Its totient is φ = 94989953520.

The previous prime is 212144230999. The next prime is 212144231003. The reversal of 212144231002 is 200132441212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (212144231003) 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, 71960613 + ... + 71963560.

It is an arithmetic number, because the mean of its divisors is an integer number (22020398622).

Almost surely, 2^212144231002 is an apocalyptic number.

212144231002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212144231002 is a deficient number, since it is larger than the sum of its proper divisors (140182146950).

212144231002 is a wasteful number, since it uses less digits than its factorization.

212144231002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143924253.

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

Adding to 212144231002 its reverse (200132441212), we get a palindrome (412276672214).

The spelling of 212144231002 in words is "two hundred twelve billion, one hundred forty-four million, two hundred thirty-one thousand, two".