1021354451211 has 16 divisors (see below), whose sum is σ = 1408051109888. Its totient is φ = 657852753600.

The previous prime is 1021354451197. The next prime is 1021354451269. The reversal of 1021354451211 is 1121544531201.

1021354451211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021354451211 - 2²¹ = 1021352354059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021354452211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8989930 + ... + 9102831.

It is an arithmetic number, because the mean of its divisors is an integer number (88003194368).

Almost surely, 2^{1021354451211} is an apocalyptic number.

1021354451211 is a deficient number, since it is larger than the sum of its proper divisors (386696658677).

1021354451211 is a wasteful number, since it uses less digits than its factorization.

1021354451211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18093402.

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 1021354451211 its reverse (1121544531201), we get a palindrome (2142898982412).

The spelling of 1021354451211 in words is "one trillion, twenty-one billion, three hundred fifty-four million, four hundred fifty-one thousand, two hundred eleven".