201222121229 has 2 divisors, whose sum is σ = 201222121230. Its totient is φ = 201222121228.

The previous prime is 201222121213. The next prime is 201222121253. The reversal of 201222121229 is 922121222102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169715161225 + 31506960004 = 411965^2 + 177502^2 .

It is a cyclic number.

It is not a de Polignac number, because 201222121229 - 2⁴ = 201222121213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201222121198 and 201222121207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201222121729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611060614 + 100611060615.

It is an arithmetic number, because the mean of its divisors is an integer number (100611060615).

Almost surely, 2^201222121229 is an apocalyptic number.

It is an amenable number.

201222121229 is a deficient number, since it is larger than the sum of its proper divisors (1).

201222121229 is an equidigital number, since it uses as much as digits as its factorization.

201222121229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 201222121229 in words is "two hundred one billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-nine".