2021031311122 has 8 divisors (see below), whose sum is σ = 3049070360076. Its totient is φ = 1004674524432.

The previous prime is 2021031311093. The next prime is 2021031311147. The reversal of 2021031311122 is 2211131301202.

It can be written as a sum of positive squares in 2 ways, for example, as 1590552291241 + 430479019881 = 1261171^2 + 656109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2021031311122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2920565133 + ... + 2920565824.

Almost surely, 2^{2021031311122} is an apocalyptic number.

2021031311122 is a deficient number, since it is larger than the sum of its proper divisors (1028039048954).

2021031311122 is a wasteful number, since it uses less digits than its factorization.

2021031311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841131132.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2021031311122 its reverse (2211131301202), we get a palindrome (4232162612324).

The spelling of 2021031311122 in words is "two trillion, twenty-one billion, thirty-one million, three hundred eleven thousand, one hundred twenty-two".