2112221452 has 12 divisors (see below), whose sum is σ = 4032422856. Its totient is φ = 960100640.

The previous prime is 2112221443. The next prime is 2112221483. The reversal of 2112221452 is 2541222112.

It is a super-2 number, since 2×2112221452² = 8922958924577976608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24002473 + ... + 24002560.

It is an arithmetic number, because the mean of its divisors is an integer number (336035238).

Almost surely, 2^2112221452 is an apocalyptic number.

2112221452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2112221452 is a deficient number, since it is larger than the sum of its proper divisors (1920201404).

2112221452 is a wasteful number, since it uses less digits than its factorization.

2112221452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48005048 (or 48005046 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 2112221452 is about 45958.9104744662. The cubic root of 2112221452 is about 1283.0585735430.

Adding to 2112221452 its reverse (2541222112), we get a palindrome (4653443564).

The spelling of 2112221452 in words is "two billion, one hundred twelve million, two hundred twenty-one thousand, four hundred fifty-two".