1002222101000 has 32 divisors (see below), whose sum is σ = 2345199718680. Its totient is φ = 400888840000.

The previous prime is 1002222100991. The next prime is 1002222101047. The reversal of 1002222101000 is 1012222001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 58483683556 + 943738417444 = 241834^2 + 971462^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501110051 + ... + 501112050.

Almost surely, 2^{1002222101000} is an apocalyptic number.

1002222101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002222101000 is an abundant number, since it is smaller than the sum of its proper divisors (1342977617680).

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

1002222101000 is a wasteful number, since it uses less digits than its factorization.

1002222101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002222122 (or 1002222108 counting only the distinct ones).

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

Adding to 1002222101000 its reverse (1012222001), we get a palindrome (1003234323001).

The spelling of 1002222101000 in words is "one trillion, two billion, two hundred twenty-two million, one hundred one thousand".