2112422021 has 8 divisors (see below), whose sum is σ = 2131466400. Its totient is φ = 2093442832.

The previous prime is 2112421979. The next prime is 2112422041. The reversal of 2112422021 is 1202242112.

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

It is a cyclic number.

It is not a de Polignac number, because 2112422021 - 2²² = 2108227717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112422041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50006 + ... + 82008.

It is an arithmetic number, because the mean of its divisors is an integer number (266433300).

Almost surely, 2^2112422021 is an apocalyptic number.

It is an amenable number.

2112422021 is a deficient number, since it is larger than the sum of its proper divisors (19044379).

2112422021 is a wasteful number, since it uses less digits than its factorization.

2112422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32595.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2112422021 is about 45961.0924696096. The cubic root of 2112422021 is about 1283.0991838098.

Adding to 2112422021 its reverse (1202242112), we get a palindrome (3314664133).

The spelling of 2112422021 in words is "two billion, one hundred twelve million, four hundred twenty-two thousand, twenty-one".