210121222121033 has 2 divisors, whose sum is σ = 210121222121034. Its totient is φ = 210121222121032.

The previous prime is 210121222120921. The next prime is 210121222121171. The reversal of 210121222121033 is 330121222121012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198719544691264 + 11401677429769 = 14096792^2 + 3376637^2 .

It is a cyclic number.

It is not a de Polignac number, because 210121222121033 - 2¹⁰ = 210121222120009 is a prime.

It is not a weakly prime, because it can be changed into another prime (210121222121933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060611060516 + 105060611060517.

It is an arithmetic number, because the mean of its divisors is an integer number (105060611060517).

Almost surely, 2^{210121222121033} is an apocalyptic number.

It is an amenable number.

210121222121033 is a deficient number, since it is larger than the sum of its proper divisors (1).

210121222121033 is an equidigital number, since it uses as much as digits as its factorization.

210121222121033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 210121222121033 its reverse (330121222121012), we get a palindrome (540242444242045).

The spelling of 210121222121033 in words is "two hundred ten trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, thirty-three".