2112021122 has 4 divisors (see below), whose sum is σ = 3168031686. Its totient is φ = 1056010560.

The previous prime is 2112021073. The next prime is 2112021127. The reversal of 2112021122 is 2211202112.

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., 1977669841 + 134351281 = 44471^2 + 11591^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2112021097 and 2112021106.

It is not an unprimeable number, because it can be changed into a prime (2112021127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528005279 + ... + 528005282.

Almost surely, 2^2112021122 is an apocalyptic number.

2112021122 is a deficient number, since it is larger than the sum of its proper divisors (1056010564).

2112021122 is a wasteful number, since it uses less digits than its factorization.

2112021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056010563.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2112021122 is about 45956.7309759952. The cubic root of 2112021122 is about 1283.0180091015.

Adding to 2112021122 its reverse (2211202112), we get a palindrome (4323223234).

It can be divided in two parts, 211202112 and 2, that multiplied together give a palindrome (422404224).

The spelling of 2112021122 in words is "two billion, one hundred twelve million, twenty-one thousand, one hundred twenty-two".