10221109853 has 2 divisors, whose sum is σ = 10221109854. Its totient is φ = 10221109852.

The previous prime is 10221109849. The next prime is 10221109973. The reversal of 10221109853 is 35890112201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8343360964 + 1877748889 = 91342^2 + 43333^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221109853 - 2² = 10221109849 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221109453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110554926 + 5110554927.

It is an arithmetic number, because the mean of its divisors is an integer number (5110554927).

Almost surely, 2^10221109853 is an apocalyptic number.

It is an amenable number.

10221109853 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221109853 is an equidigital number, since it uses as much as digits as its factorization.

10221109853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 10221109853 in words is "ten billion, two hundred twenty-one million, one hundred nine thousand, eight hundred fifty-three".