1000200221221 has 8 divisors (see below), whose sum is σ = 1002710522304. Its totient is φ = 997692523200.

The previous prime is 1000200221161. The next prime is 1000200221249. The reversal of 1000200221221 is 1221220020001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000200221221 - 2⁷ = 1000200221093 is a prime.

It is a super-3 number, since 3×1000200221221³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000200251221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119821 + ... + 1419421.

It is an arithmetic number, because the mean of its divisors is an integer number (125338815288).

Almost surely, 2^{1000200221221} is an apocalyptic number.

It is an amenable number.

1000200221221 is a deficient number, since it is larger than the sum of its proper divisors (2510301083).

1000200221221 is a wasteful number, since it uses less digits than its factorization.

1000200221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301531.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000200221221 its reverse (1221220020001), we get a palindrome (2221420241222).

The spelling of 1000200221221 in words is "one trillion, two hundred million, two hundred twenty-one thousand, two hundred twenty-one".