212021012152 has 16 divisors (see below), whose sum is σ = 398238069600. Its totient is φ = 105824193600.

The previous prime is 212021012089. The next prime is 212021012153. The reversal of 212021012152 is 251210120212.

It is a happy number.

It is a super-2 number, since 2×212021012152² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021012153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23284224 + ... + 23293327.

It is an arithmetic number, because the mean of its divisors is an integer number (24889879350).

Almost surely, 2^212021012152 is an apocalyptic number.

It is an amenable number.

212021012152 is a deficient number, since it is larger than the sum of its proper divisors (186217057448).

212021012152 is a wasteful number, since it uses less digits than its factorization.

212021012152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46578126 (or 46578122 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 212021012152 its reverse (251210120212), we get a palindrome (463231132364).

The spelling of 212021012152 in words is "two hundred twelve billion, twenty-one million, twelve thousand, one hundred fifty-two".