1110201021901 has 2 divisors, whose sum is σ = 1110201021902. Its totient is φ = 1110201021900.

The previous prime is 1110201021863. The next prime is 1110201022001. The reversal of 1110201021901 is 1091201020111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 847042281801 + 263158740100 = 920349^2 + 512990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110201021901 - 2²¹ = 1110198924749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110201021001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555100510950 + 555100510951.

It is an arithmetic number, because the mean of its divisors is an integer number (555100510951).

Almost surely, 2^{1110201021901} is an apocalyptic number.

It is an amenable number.

1110201021901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110201021901 is an equidigital number, since it uses as much as digits as its factorization.

1110201021901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 1110201021901 in words is "one trillion, one hundred ten billion, two hundred one million, twenty-one thousand, nine hundred one".