10200551501221 has 2 divisors, whose sum is σ = 10200551501222. Its totient is φ = 10200551501220.

The previous prime is 10200551501201. The next prime is 10200551501227. The reversal of 10200551501221 is 12210515500201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9281466902500 + 919084598721 = 3046550^2 + 958689^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200551501221 - 2⁹ = 10200551500709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10200551501227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5100275750610 + 5100275750611.

It is an arithmetic number, because the mean of its divisors is an integer number (5100275750611).

Almost surely, 2^{10200551501221} is an apocalyptic number.

It is an amenable number.

10200551501221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10200551501221 is an equidigital number, since it uses as much as digits as its factorization.

10200551501221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 10200551501221 in words is "ten trillion, two hundred billion, five hundred fifty-one million, five hundred one thousand, two hundred twenty-one".