2112402211042 has 4 divisors (see below), whose sum is σ = 3168603316566. Its totient is φ = 1056201105520.

The previous prime is 2112402211009. The next prime is 2112402211043. The reversal of 2112402211042 is 2401122042112.

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

It can be written as a sum of positive squares in only one way, i.e., 1899162366201 + 213239844841 = 1378101^2 + 461779^2 .

It is not an unprimeable number, because it can be changed into a prime (2112402211043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528100552759 + ... + 528100552762.

Almost surely, 2^{2112402211042} is an apocalyptic number.

2112402211042 is a deficient number, since it is larger than the sum of its proper divisors (1056201105524).

2112402211042 is a wasteful number, since it uses less digits than its factorization.

2112402211042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056201105523.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 2112402211042 its reverse (2401122042112), we get a palindrome (4513524253154).

The spelling of 2112402211042 in words is "two trillion, one hundred twelve billion, four hundred two million, two hundred eleven thousand, forty-two".