2122220045 has 16 divisors (see below), whose sum is σ = 2780265600. Its totient is φ = 1542273600.

The previous prime is 2122220003. The next prime is 2122220047. The reversal of 2122220045 is 5400222212.

It is not a de Polignac number, because 2122220045 - 2⁸ = 2122219789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122219999 and 2122220026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122220047) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63155 + ... + 90735.

It is an arithmetic number, because the mean of its divisors is an integer number (173766600).

Almost surely, 2^2122220045 is an apocalyptic number.

It is an amenable number.

2122220045 is a deficient number, since it is larger than the sum of its proper divisors (658045555).

2122220045 is a wasteful number, since it uses less digits than its factorization.

2122220045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28996.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2122220045 is about 46067.5595728708. The cubic root of 2122220045 is about 1285.0799195299.

Adding to 2122220045 its reverse (5400222212), we get a palindrome (7522442257).

The spelling of 2122220045 in words is "two billion, one hundred twenty-two million, two hundred twenty thousand, forty-five".