222001201000 has 32 divisors (see below), whose sum is σ = 519482812680. Its totient is φ = 88800480000.

The previous prime is 222001200991. The next prime is 222001201109. The reversal of 222001201000 is 102100222.

It can be written as a sum of positive squares in 4 ways, for example, as 17764091524 + 204237109476 = 133282^2 + 451926^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110999601 + ... + 111001600.

Almost surely, 2^222001201000 is an apocalyptic number.

222001201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222001201000 is an abundant number, since it is smaller than the sum of its proper divisors (297481611680).

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

222001201000 is a wasteful number, since it uses less digits than its factorization.

222001201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222001222 (or 222001208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 222001201000 its reverse (102100222), we get a palindrome (222103301222).

The spelling of 222001201000 in words is "two hundred twenty-two billion, one million, two hundred one thousand".