212021055707 has 2 divisors, whose sum is σ = 212021055708. Its totient is φ = 212021055706.

The previous prime is 212021055691. The next prime is 212021055713. The reversal of 212021055707 is 707550120212.

212021055707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021055707 - 2⁴ = 212021055691 is a prime.

It is a super-2 number, since 2×212021055707² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212021055907) 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 as a sum of consecutive naturals, namely, 106010527853 + 106010527854.

It is an arithmetic number, because the mean of its divisors is an integer number (106010527854).

Almost surely, 2^212021055707 is an apocalyptic number.

212021055707 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021055707 is an equidigital number, since it uses as much as digits as its factorization.

212021055707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9800, while the sum is 32.

Adding to 212021055707 its reverse (707550120212), we get a palindrome (919571175919).

The spelling of 212021055707 in words is "two hundred twelve billion, twenty-one million, fifty-five thousand, seven hundred seven".