2021611122 has 40 divisors (see below), whose sum is σ = 4676044032. Its totient is φ = 652131000.

The previous prime is 2021611121. The next prime is 2021611129. The reversal of 2021611122 is 2211161202.

2021611122 is a `hidden beast` number, since 20 + 21 + 611 + 12 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2021611095 and 2021611104.

It is not an unprimeable number, because it can be changed into a prime (2021611121) by changing a digit.

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 in 19 ways as a sum of consecutive naturals, for example, 196254 + ... + 206297.

Almost surely, 2^2021611122 is an apocalyptic number.

2021611122 is an abundant number, since it is smaller than the sum of its proper divisors (2654432910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021611122 is a wasteful number, since it uses less digits than its factorization.

2021611122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402596 (or 402587 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2021611122 is about 44962.3300330399. The cubic root of 2021611122 is about 1264.4428531732.

Adding to 2021611122 its reverse (2211161202), we get a palindrome (4232772324).

The spelling of 2021611122 in words is "two billion, twenty-one million, six hundred eleven thousand, one hundred twenty-two".