2112210000 has 200 divisors, whose sum is σ = 7577074560. Its totient is φ = 563184000.

The previous prime is 2112209989. The next prime is 2112210011. The reversal of 2112210000 is 122112.

It is an interprime number because it is at equal distance from previous prime (2112209989) and next prime (2112210011).

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×2112210000² = 8922862168200000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 266089 + ... + 273911.

Almost surely, 2^2112210000 is an apocalyptic number.

2112210000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3788537280).

2112210000 is an abundant number, since it is smaller than the sum of its proper divisors (5464864560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112210000 is an equidigital number, since it uses as much as digits as its factorization.

2112210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860 (or 7833 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2112210000 is about 45958.7858847468. The cubic root of 2112210000 is about 1283.0562547184.

Adding to 2112210000 its reverse (122112), we get a palindrome (2112332112).

The spelling of 2112210000 in words is "two billion, one hundred twelve million, two hundred ten thousand".