201202121101 has 2 divisors, whose sum is σ = 201202121102. Its totient is φ = 201202121100.

The previous prime is 201202121069. The next prime is 201202121119. The reversal of 201202121101 is 101121202102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146807754025 + 54394367076 = 383155^2 + 233226^2 .

It is a cyclic number.

It is not a de Polignac number, because 201202121101 - 2⁵ = 201202121069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201202122101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601060550 + 100601060551.

It is an arithmetic number, because the mean of its divisors is an integer number (100601060551).

Almost surely, 2^201202121101 is an apocalyptic number.

It is an amenable number.

201202121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201202121101 is an equidigital number, since it uses as much as digits as its factorization.

201202121101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201202121101 its reverse (101121202102), we get a palindrome (302323323203).

The spelling of 201202121101 in words is "two hundred one billion, two hundred two million, one hundred twenty-one thousand, one hundred one".