1012112222201 has 2 divisors, whose sum is σ = 1012112222202. Its totient is φ = 1012112222200.

The previous prime is 1012112222131. The next prime is 1012112222273. The reversal of 1012112222201 is 1022222112101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 732325177600 + 279787044601 = 855760^2 + 528949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012112222201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012112222201.

It is not a weakly prime, because it can be changed into another prime (1012112222801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506056111100 + 506056111101.

It is an arithmetic number, because the mean of its divisors is an integer number (506056111101).

Almost surely, 2^{1012112222201} is an apocalyptic number.

It is an amenable number.

1012112222201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012112222201 is an equidigital number, since it uses as much as digits as its factorization.

1012112222201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1012112222201 its reverse (1022222112101), we get a palindrome (2034334334302).

The spelling of 1012112222201 in words is "one trillion, twelve billion, one hundred twelve million, two hundred twenty-two thousand, two hundred one".