2122142245 has 8 divisors (see below), whose sum is σ = 2546903160. Its totient is φ = 1697492160.

The previous prime is 2122142221. The next prime is 2122142273. The reversal of 2122142245 is 5422412212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1048334884 + 1073807361 = 32378^2 + 32769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2122142245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22791 + ... + 69019.

It is an arithmetic number, because the mean of its divisors is an integer number (318362895).

Almost surely, 2^2122142245 is an apocalyptic number.

It is an amenable number.

2122142245 is a deficient number, since it is larger than the sum of its proper divisors (424760915).

2122142245 is an equidigital number, since it uses as much as digits as its factorization.

2122142245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55415.

The product of its digits is 2560, while the sum is 25.

The square root of 2122142245 is about 46066.7151531342. The cubic root of 2122142245 is about 1285.0642157798.

Adding to 2122142245 its reverse (5422412212), we get a palindrome (7544554457).

The spelling of 2122142245 in words is "two billion, one hundred twenty-two million, one hundred forty-two thousand, two hundred forty-five".