2112748234442 has 4 divisors (see below), whose sum is σ = 3169122351666. Its totient is φ = 1056374117220.

The previous prime is 2112748234321. The next prime is 2112748234459. The reversal of 2112748234442 is 2444328472112.

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., 2112630273121 + 117961321 = 1453489^2 + 10861^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2112748234393 and 2112748234402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528187058609 + ... + 528187058612.

Almost surely, 2^{2112748234442} is an apocalyptic number.

2112748234442 is a deficient number, since it is larger than the sum of its proper divisors (1056374117224).

2112748234442 is a wasteful number, since it uses less digits than its factorization.

2112748234442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056374117223.

The product of its digits is 688128, while the sum is 44.

The spelling of 2112748234442 in words is "two trillion, one hundred twelve billion, seven hundred forty-eight million, two hundred thirty-four thousand, four hundred forty-two".