20212016285 has 8 divisors (see below), whose sum is σ = 24255866880. Its totient is φ = 16168648144.

The previous prime is 20212016281. The next prime is 20212016309. The reversal of 20212016285 is 58261021202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20212016285 - 2² = 20212016281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212016281) 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, 20957 + ... + 202146.

It is an arithmetic number, because the mean of its divisors is an integer number (3031983360).

Almost surely, 2^20212016285 is an apocalyptic number.

It is an amenable number.

20212016285 is a deficient number, since it is larger than the sum of its proper divisors (4043850595).

20212016285 is a wasteful number, since it uses less digits than its factorization.

20212016285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241227.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 20212016285 its reverse (58261021202), we get a palindrome (78473037487).

The spelling of 20212016285 in words is "twenty billion, two hundred twelve million, sixteen thousand, two hundred eighty-five".