2112221210 has 16 divisors (see below), whose sum is σ = 4147634592. Its totient is φ = 768080400.

The previous prime is 2112221207. The next prime is 2112221213. The reversal of 2112221210 is 121222112.

It is an interprime number because it is at equal distance from previous prime (2112221207) and next prime (2112221213).

It is a super-2 number, since 2×2112221210² = 8922956879947728200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2112221213) 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, 9600896 + ... + 9601115.

It is an arithmetic number, because the mean of its divisors is an integer number (259227162).

Almost surely, 2^2112221210 is an apocalyptic number.

2112221210 is a deficient number, since it is larger than the sum of its proper divisors (2035413382).

2112221210 is a wasteful number, since it uses less digits than its factorization.

2112221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19202029.

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

The square root of 2112221210 is about 45958.9078416796. The cubic root of 2112221210 is about 1283.0585245424.

Adding to 2112221210 its reverse (121222112), we get a palindrome (2233443322).

It can be divided in two parts, 2112 and 221210, that added together give a palindrome (223322).

The spelling of 2112221210 in words is "two billion, one hundred twelve million, two hundred twenty-one thousand, two hundred ten".