202120121201 has 2 divisors, whose sum is σ = 202120121202. Its totient is φ = 202120121200.

The previous prime is 202120121167. The next prime is 202120121233. The reversal of 202120121201 is 102121021202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102576716176 + 99543405025 = 320276^2 + 315505^2 .

It is a cyclic number.

It is not a de Polignac number, because 202120121201 - 2¹⁰ = 202120120177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (202120121101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060060600 + 101060060601.

It is an arithmetic number, because the mean of its divisors is an integer number (101060060601).

Almost surely, 2^202120121201 is an apocalyptic number.

It is an amenable number.

202120121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120121201 is an equidigital number, since it uses as much as digits as its factorization.

202120121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202120121201 its reverse (102121021202), we get a palindrome (304241142403).

Subtracting from 202120121201 its reverse (102121021202), we obtain a palindrome (99999099999).

It can be divided in two parts, 2021201 and 21201, that added together give a palindrome (2042402).

The spelling of 202120121201 in words is "two hundred two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred one".