1002201100 has 18 divisors (see below), whose sum is σ = 2174776604. Its totient is φ = 400880400.

The previous prime is 1002201097. The next prime is 1002201127. The reversal of 1002201100 is 11022001.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5010906 + ... + 5011105.

Almost surely, 2^1002201100 is an apocalyptic number.

1002201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002201100 is an abundant number, since it is smaller than the sum of its proper divisors (1172575504).

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

1002201100 is a wasteful number, since it uses less digits than its factorization.

1002201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022025 (or 10022018 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1002201100 is about 31657.5599186040. The cubic root of 1002201100 is about 1000.7331623416.

Adding to 1002201100 its reverse (11022001), we get a palindrome (1013223101).

The spelling of 1002201100 in words is "one billion, two million, two hundred one thousand, one hundred".