201222121253 has 2 divisors, whose sum is σ = 201222121254. Its totient is φ = 201222121252.

The previous prime is 201222121229. The next prime is 201222121271. The reversal of 201222121253 is 352121222102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108980534884 + 92241586369 = 330122^2 + 303713^2 .

It is a cyclic number.

It is not a de Polignac number, because 201222121253 - 2⁶ = 201222121189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201222121213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611060626 + 100611060627.

It is an arithmetic number, because the mean of its divisors is an integer number (100611060627).

Almost surely, 2^201222121253 is an apocalyptic number.

It is an amenable number.

201222121253 is a deficient number, since it is larger than the sum of its proper divisors (1).

201222121253 is an equidigital number, since it uses as much as digits as its factorization.

201222121253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 201222121253 its reverse (352121222102), we get a palindrome (553343343355).

The spelling of 201222121253 in words is "two hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred fifty-three".