2021772112 has 40 divisors (see below), whose sum is σ = 3976564680. Its totient is φ = 995673600.

The previous prime is 2021772061. The next prime is 2021772131. The reversal of 2021772112 is 2112771202.

It can be written as a sum of positive squares in 4 ways, for example, as 809061136 + 1212710976 = 28444^2 + 34824^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298362 + ... + 305062.

It is an arithmetic number, because the mean of its divisors is an integer number (99414117).

Almost surely, 2^2021772112 is an apocalyptic number.

It is an amenable number.

2021772112 is a deficient number, since it is larger than the sum of its proper divisors (1954792568).

2021772112 is a wasteful number, since it uses less digits than its factorization.

2021772112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991 (or 6985 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 2021772112 is about 44964.1202738361. The cubic root of 2021772112 is about 1264.4764167090.

It can be divided in two parts, 20217 and 72112, that added together give a palindrome (92329).

The spelling of 2021772112 in words is "two billion, twenty-one million, seven hundred seventy-two thousand, one hundred twelve".