2221122022200 has 192 divisors, whose sum is σ = 8100563004000. Its totient is φ = 557458053120.

The previous prime is 2221122022193. The next prime is 2221122022277. The reversal of 2221122022200 is 22202211222.

2221122022200 is a `hidden beast` number, since 2 + 221 + 1 + 220 + 2 + 220 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 12005815 + ... + 12189414.

Almost surely, 2^{2221122022200} is an apocalyptic number.

2221122022200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221122022200 is an abundant number, since it is smaller than the sum of its proper divisors (5879440981800).

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

2221122022200 is a wasteful number, since it uses less digits than its factorization.

2221122022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24195271 (or 24195256 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2221122022200 its reverse (22202211222), we get a palindrome (2243324233422).

The spelling of 2221122022200 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, twenty-two thousand, two hundred".