2111222032144 has 20 divisors (see below), whose sum is σ = 4090751791324. Its totient is φ = 1055544150528.

The previous prime is 2111222032063. The next prime is 2111222032147. The reversal of 2111222032144 is 4412302221112.

It can be written as a sum of positive squares in 2 ways, for example, as 1515577663744 + 595644368400 = 1231088^2 + 771780^2 .

It is not an unprimeable number, because it can be changed into a prime (2111222032147) 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, 3918117 + ... + 4424260.

Almost surely, 2^{2111222032144} is an apocalyptic number.

It is an amenable number.

2111222032144 is a deficient number, since it is larger than the sum of its proper divisors (1979529759180).

2111222032144 is a wasteful number, since it uses less digits than its factorization.

2111222032144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358202 (or 8358196 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 2111222032144 its reverse (4412302221112), we get a palindrome (6523524253256).

The spelling of 2111222032144 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, thirty-two thousand, one hundred forty-four".