10221001099949 has 2 divisors, whose sum is σ = 10221001099950. Its totient is φ = 10221001099948.

The previous prime is 10221001099919. The next prime is 10221001100033. The reversal of 10221001099949 is 94999010012201.

10221001099949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5913894422500 + 4307106677449 = 2431850^2 + 2075357^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221001099949 - 2³² = 10216706132653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221001099919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110500549974 + 5110500549975.

It is an arithmetic number, because the mean of its divisors is an integer number (5110500549975).

Almost surely, 2^{10221001099949} is an apocalyptic number.

It is an amenable number.

10221001099949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221001099949 is an equidigital number, since it uses as much as digits as its factorization.

10221001099949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 10221001099949 in words is "ten trillion, two hundred twenty-one billion, one million, ninety-nine thousand, nine hundred forty-nine".