2042120212402 has 4 divisors (see below), whose sum is σ = 3063180318606. Its totient is φ = 1021060106200.

The previous prime is 2042120212393. The next prime is 2042120212403.

2042120212402 is nontrivially palindromic in base 10.

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., 1949321384761 + 92798827641 = 1396181^2 + 304629^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2042120212403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510530053099 + ... + 510530053102.

Almost surely, 2^{2042120212402} is an apocalyptic number.

2042120212402 is a deficient number, since it is larger than the sum of its proper divisors (1021060106204).

2042120212402 is a wasteful number, since it uses less digits than its factorization.

2042120212402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021060106203.

The product of its (nonzero) digits is 1024, while the sum is 22.

It can be divided in two parts, 2042120 and 212402, that added together give a palindrome (2254522).

The spelling of 2042120212402 in words is "two trillion, forty-two billion, one hundred twenty million, two hundred twelve thousand, four hundred two".