100212003203281 has 2 divisors, whose sum is σ = 100212003203282. Its totient is φ = 100212003203280.

The previous prime is 100212003203171. The next prime is 100212003203341. The reversal of 100212003203281 is 182302300212001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99418049139600 + 793954063681 = 9970860^2 + 891041^2 .

It is a cyclic number.

It is not a de Polignac number, because 100212003203281 - 2³³ = 100203413268689 is a prime.

It is a super-2 number, since 2×100212003203281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100212003203981) 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 as a sum of consecutive naturals, namely, 50106001601640 + 50106001601641.

It is an arithmetic number, because the mean of its divisors is an integer number (50106001601641).

Almost surely, 2^{100212003203281} is an apocalyptic number.

It is an amenable number.

100212003203281 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212003203281 is an equidigital number, since it uses as much as digits as its factorization.

100212003203281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 100212003203281 its reverse (182302300212001), we get a palindrome (282514303415282).

The spelling of 100212003203281 in words is "one hundred trillion, two hundred twelve billion, three million, two hundred three thousand, two hundred eighty-one".