20101201221259 has 2 divisors, whose sum is σ = 20101201221260. Its totient is φ = 20101201221258.

The previous prime is 20101201221139. The next prime is 20101201221307. The reversal of 20101201221259 is 95212210210102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20101201221259 - 2⁹ = 20101201220747 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101201231259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050600610629 + 10050600610630.

It is an arithmetic number, because the mean of its divisors is an integer number (10050600610630).

Almost surely, 2^{20101201221259} is an apocalyptic number.

20101201221259 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101201221259 is an equidigital number, since it uses as much as digits as its factorization.

20101201221259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 20101201221259 in words is "twenty trillion, one hundred one billion, two hundred one million, two hundred twenty-one thousand, two hundred fifty-nine".