212021011258 has 16 divisors (see below), whose sum is σ = 369625008960. Its totient is φ = 89326043136.

The previous prime is 212021011177. The next prime is 212021011259. The reversal of 212021011258 is 852110120212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212021011259) 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 7 ways as a sum of consecutive naturals, for example, 128341191 + ... + 128342842.

It is an arithmetic number, because the mean of its divisors is an integer number (23101563060).

Almost surely, 2^212021011258 is an apocalyptic number.

212021011258 is a deficient number, since it is larger than the sum of its proper divisors (157603997702).

212021011258 is a wasteful number, since it uses less digits than its factorization.

212021011258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256684101.

The product of its (nonzero) digits is 640, while the sum is 25.

The spelling of 212021011258 in words is "two hundred twelve billion, twenty-one million, eleven thousand, two hundred fifty-eight".