212101220053 has 2 divisors, whose sum is σ = 212101220054. Its totient is φ = 212101220052.

The previous prime is 212101220039. The next prime is 212101220083. The reversal of 212101220053 is 350022101212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209253183364 + 2848036689 = 457442^2 + 53367^2 .

It is a cyclic number.

It is not a de Polignac number, because 212101220053 - 2²⁹ = 211564349141 is a prime.

It is a super-2 number, since 2×212101220053² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212101220053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212101220003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050610026 + 106050610027.

It is an arithmetic number, because the mean of its divisors is an integer number (106050610027).

Almost surely, 2^212101220053 is an apocalyptic number.

It is an amenable number.

212101220053 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101220053 is an equidigital number, since it uses as much as digits as its factorization.

212101220053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 212101220053 its reverse (350022101212), we get a palindrome (562123321265).

The spelling of 212101220053 in words is "two hundred twelve billion, one hundred one million, two hundred twenty thousand, fifty-three".