212220142042 has 16 divisors (see below), whose sum is σ = 327184137000. Its totient is φ = 103197853440.

The previous prime is 212220142027. The next prime is 212220142049. The reversal of 212220142042 is 240241022212.

212220142042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 165395942721 + 46824199321 = 406689^2 + 216389^2 .

It is not an unprimeable number, because it can be changed into a prime (212220142049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9761667 + ... + 9783382.

Almost surely, 2^212220142042 is an apocalyptic number.

212220142042 is a deficient number, since it is larger than the sum of its proper divisors (114963994958).

212220142042 is a wasteful number, since it uses less digits than its factorization.

212220142042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19545201.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 212220142042 its reverse (240241022212), we get a palindrome (452461164254).

The spelling of 212220142042 in words is "two hundred twelve billion, two hundred twenty million, one hundred forty-two thousand, forty-two".