212021999983 has 2 divisors, whose sum is σ = 212021999984. Its totient is φ = 212021999982.

The previous prime is 212021999977. The next prime is 212021999993. The reversal of 212021999983 is 389999120212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021999983 - 2¹³ = 212021991791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021999993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010999991 + 106010999992.

It is an arithmetic number, because the mean of its divisors is an integer number (106010999992).

Almost surely, 2^212021999983 is an apocalyptic number.

212021999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021999983 is an equidigital number, since it uses as much as digits as its factorization.

212021999983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 212021999983 in words is "two hundred twelve billion, twenty-one million, nine hundred ninety-nine thousand, nine hundred eighty-three".