4020211215045 has 12 divisors (see below), whose sum is σ = 6968366106156. Its totient is φ = 2144112648000.

The previous prime is 4020211215043. The next prime is 4020211215091. The reversal of 4020211215045 is 5405121120204.

It is a happy number.

4020211215045 is a `hidden beast` number, since 40 + 2 + 0 + 2 + 112 + 1 + 504 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1282433942916 + 2737777272129 = 1132446^2 + 1654623^2 .

It is not a de Polignac number, because 4020211215045 - 2¹ = 4020211215043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020211215043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44669013456 + ... + 44669013545.

It is an arithmetic number, because the mean of its divisors is an integer number (580697175513).

Almost surely, 2^{4020211215045} is an apocalyptic number.

4020211215045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4020211215045 is a deficient number, since it is larger than the sum of its proper divisors (2948154891111).

4020211215045 is a wasteful number, since it uses less digits than its factorization.

4020211215045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89338027012 (or 89338027009 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 4020211215045 its reverse (5405121120204), we get a palindrome (9425332335249).

The spelling of 4020211215045 in words is "four trillion, twenty billion, two hundred eleven million, two hundred fifteen thousand, forty-five".