21100210201033 has 2 divisors, whose sum is σ = 21100210201034. Its totient is φ = 21100210201032.

The previous prime is 21100210200997. The next prime is 21100210201051. The reversal of 21100210201033 is 33010201200112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16283186069049 + 4817024131984 = 4035243^2 + 2194772^2 .

It is a cyclic number.

It is not a de Polignac number, because 21100210201033 - 2³³ = 21091620266441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21100210200998 and 21100210201016.

It is not a weakly prime, because it can be changed into another prime (21100210201093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550105100516 + 10550105100517.

It is an arithmetic number, because the mean of its divisors is an integer number (10550105100517).

Almost surely, 2^{21100210201033} is an apocalyptic number.

It is an amenable number.

21100210201033 is a deficient number, since it is larger than the sum of its proper divisors (1).

21100210201033 is an equidigital number, since it uses as much as digits as its factorization.

21100210201033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21100210201033 its reverse (33010201200112), we get a palindrome (54110411401145).

The spelling of 21100210201033 in words is "twenty-one trillion, one hundred billion, two hundred ten million, two hundred one thousand, thirty-three".