2021342122 has 4 divisors (see below), whose sum is σ = 3032013186. Its totient is φ = 1010671060.

The previous prime is 2021342119. The next prime is 2021342149. The reversal of 2021342122 is 2212431202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2212431202 = 2 ⋅1106215601.

It can be written as a sum of positive squares in only one way, i.e., 1439519481 + 581822641 = 37941^2 + 24121^2 .

It is a super-3 number, since 3×2021342122³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2021342122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505335529 + ... + 505335532.

Almost surely, 2^2021342122 is an apocalyptic number.

2021342122 is a deficient number, since it is larger than the sum of its proper divisors (1010671064).

2021342122 is a wasteful number, since it uses less digits than its factorization.

2021342122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010671063.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2021342122 is about 44959.3385405079. The cubic root of 2021342122 is about 1264.3867675078.

Adding to 2021342122 its reverse (2212431202), we get a palindrome (4233773324).

The spelling of 2021342122 in words is "two billion, twenty-one million, three hundred forty-two thousand, one hundred twenty-two".