1222101200 has 60 divisors (see below), whose sum is σ = 2940014208. Its totient is φ = 488188800.

The previous prime is 1222101197. The next prime is 1222101211. The reversal of 1222101200 is 21012221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394859 + ... + 397941.

Almost surely, 2^1222101200 is an apocalyptic number.

1222101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222101200 is an abundant number, since it is smaller than the sum of its proper divisors (1717913008).

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

1222101200 is a wasteful number, since it uses less digits than its factorization.

1222101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092 (or 4081 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1222101200 is about 34958.5640437361. The cubic root of 1222101200 is about 1069.1428194763.

Adding to 1222101200 its reverse (21012221), we get a palindrome (1243113421).

The spelling of 1222101200 in words is "one billion, two hundred twenty-two million, one hundred one thousand, two hundred".