212020019999957 has 16 divisors (see below), whose sum is σ = 229997227209792. Its totient is φ = 194281111543680.

The previous prime is 212020019999947. The next prime is 212020020000031. The reversal of 212020019999957 is 759999910020212.

It is a cyclic number.

It is not a de Polignac number, because 212020019999957 - 2⁴ = 212020019999941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020019999893 and 212020019999902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020019999947) 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 15 ways as a sum of consecutive naturals, for example, 564195038 + ... + 564570704.

It is an arithmetic number, because the mean of its divisors is an integer number (14374826700612).

Almost surely, 2^{212020019999957} is an apocalyptic number.

It is an amenable number.

212020019999957 is a deficient number, since it is larger than the sum of its proper divisors (17977207209835).

212020019999957 is a wasteful number, since it uses less digits than its factorization.

212020019999957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692708.

The product of its (nonzero) digits is 16533720, while the sum is 65.

The spelling of 212020019999957 in words is "two hundred twelve trillion, twenty billion, nineteen million, nine hundred ninety-nine thousand, nine hundred fifty-seven".