1212210112153 has 2 divisors, whose sum is σ = 1212210112154. Its totient is φ = 1212210112152.

The previous prime is 1212210112103. The next prime is 1212210112189. The reversal of 1212210112153 is 3512110122121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114907915664 + 97302196489 = 1055892^2 + 311933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212210112153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212210112103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105056076 + 606105056077.

It is an arithmetic number, because the mean of its divisors is an integer number (606105056077).

Almost surely, 2^{1212210112153} is an apocalyptic number.

It is an amenable number.

1212210112153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210112153 is an equidigital number, since it uses as much as digits as its factorization.

1212210112153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 1212210112153 its reverse (3512110122121), we get a palindrome (4724320234274).

The spelling of 1212210112153 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twelve thousand, one hundred fifty-three".