2211021141445 has 4 divisors (see below), whose sum is σ = 2653225369740. Its totient is φ = 1768816913152.

The previous prime is 2211021141403. The next prime is 2211021141451. The reversal of 2211021141445 is 5441411201122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1264558724676 + 946462416769 = 1124526^2 + 972863^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211021141445 - 2³¹ = 2208873657797 is a prime.

It is a super-2 number, since 2×2211021141445² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221102114140 + ... + 221102114149.

It is an arithmetic number, because the mean of its divisors is an integer number (663306342435).

Almost surely, 2^{2211021141445} is an apocalyptic number.

It is an amenable number.

2211021141445 is a deficient number, since it is larger than the sum of its proper divisors (442204228295).

2211021141445 is an equidigital number, since it uses as much as digits as its factorization.

2211021141445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442204228294.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 2211021141445 its reverse (5441411201122), we get a palindrome (7652432342567).

The spelling of 2211021141445 in words is "two trillion, two hundred eleven billion, twenty-one million, one hundred forty-one thousand, four hundred forty-five".