1021102221149 has 2 divisors, whose sum is σ = 1021102221150. Its totient is φ = 1021102221148.

The previous prime is 1021102221103. The next prime is 1021102221193. The reversal of 1021102221149 is 9411222011201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 796345633924 + 224756587225 = 892382^2 + 474085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021102221149 - 2²⁰ = 1021101172573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021102221649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510551110574 + 510551110575.

It is an arithmetic number, because the mean of its divisors is an integer number (510551110575).

Almost surely, 2^{1021102221149} is an apocalyptic number.

It is an amenable number.

1021102221149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021102221149 is an equidigital number, since it uses as much as digits as its factorization.

1021102221149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 1021102221149 in words is "one trillion, twenty-one billion, one hundred two million, two hundred twenty-one thousand, one hundred forty-nine".