212021155162 has 64 divisors (see below), whose sum is σ = 354757294080. Its totient is φ = 94698489600.

The previous prime is 212021155153. The next prime is 212021155183. The reversal of 212021155162 is 261551120212.

212021155162 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212021155162.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4587264 + ... + 4633252.

It is an arithmetic number, because the mean of its divisors is an integer number (5543082720).

Almost surely, 2^212021155162 is an apocalyptic number.

212021155162 is a deficient number, since it is larger than the sum of its proper divisors (142736138918).

212021155162 is a wasteful number, since it uses less digits than its factorization.

212021155162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46159.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 212021155162 its reverse (261551120212), we get a palindrome (473572275374).

The spelling of 212021155162 in words is "two hundred twelve billion, twenty-one million, one hundred fifty-five thousand, one hundred sixty-two".