212020053851 has 4 divisors (see below), whose sum is σ = 212023822104. Its totient is φ = 212016285600.

The previous prime is 212020053809. The next prime is 212020053859. The reversal of 212020053851 is 158350020212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212020053851 - 2⁶ = 212020053787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212020053859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1798430 + ... + 1912691.

It is an arithmetic number, because the mean of its divisors is an integer number (53005955526).

Almost surely, 2^212020053851 is an apocalyptic number.

212020053851 is a deficient number, since it is larger than the sum of its proper divisors (3768253).

212020053851 is an equidigital number, since it uses as much as digits as its factorization.

212020053851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768252.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 212020053851 in words is "two hundred twelve billion, twenty million, fifty-three thousand, eight hundred fifty-one".