42645226512211 has 4 divisors (see below), whose sum is σ = 42645647979792. Its totient is φ = 42644805044632.

The previous prime is 42645226512209. The next prime is 42645226512241. The reversal of 42645226512211 is 11221562254624.

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

It is a cyclic number.

It is not a de Polignac number, because 42645226512211 - 2¹ = 42645226512209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42645226512241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210581980 + ... + 210784393.

It is an arithmetic number, because the mean of its divisors is an integer number (10661411994948).

Almost surely, 2^{42645226512211} is an apocalyptic number.

42645226512211 is a deficient number, since it is larger than the sum of its proper divisors (421467581).

42645226512211 is a wasteful number, since it uses less digits than its factorization.

42645226512211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421467580.

The product of its digits is 460800, while the sum is 43.

Adding to 42645226512211 its reverse (11221562254624), we get a palindrome (53866788766835).

The spelling of 42645226512211 in words is "forty-two trillion, six hundred forty-five billion, two hundred twenty-six million, five hundred twelve thousand, two hundred eleven".