2221342200 has 864 divisors, whose sum is σ = 9879367680. Its totient is φ = 437184000.

The previous prime is 2221342183. The next prime is 2221342223. The reversal of 2221342200 is 22431222.

It is a super-2 number, since 2×2221342200² = 9868722339001680000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 47262577 + ... + 47262623.

Almost surely, 2^2221342200 is an apocalyptic number.

2221342200 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 2221342200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4939683840).

2221342200 is an abundant number, since it is smaller than the sum of its proper divisors (7658025480).

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

2221342200 is a wasteful number, since it uses less digits than its factorization.

2221342200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2221342200 is about 47131.1171096124. The cubic root of 2221342200 is about 1304.7835991199.

Adding to 2221342200 its reverse (22431222), we get a palindrome (2243773422).

The spelling of 2221342200 in words is "two billion, two hundred twenty-one million, three hundred forty-two thousand, two hundred".