10353554221 has 2 divisors, whose sum is σ = 10353554222. Its totient is φ = 10353554220.

The previous prime is 10353554191. The next prime is 10353554227. The reversal of 10353554221 is 12245535301.

10353554221 = T₈₃₀₇₉ + T₈₃₀₈₀ + T₈₃₀₈₁.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5866028100 + 4487526121 = 76590^2 + 66989^2 .

It is a cyclic number.

It is not a de Polignac number, because 10353554221 - 2⁷ = 10353554093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10353554227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5176777110 + 5176777111.

It is an arithmetic number, because the mean of its divisors is an integer number (5176777111).

Almost surely, 2^10353554221 is an apocalyptic number.

10353554221 is the 83081-st centered triangular number.

It is an amenable number.

10353554221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10353554221 is an equidigital number, since it uses as much as digits as its factorization.

10353554221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 10353554221 in words is "ten billion, three hundred fifty-three million, five hundred fifty-four thousand, two hundred twenty-one".