10221002000 has 80 divisors (see below), whose sum is σ = 26961202944. Its totient is φ = 3716720000.

The previous prime is 10221001957. The next prime is 10221002081. The reversal of 10221002000 is 20012201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210296 + ... + 254295.

Almost surely, 2^10221002000 is an apocalyptic number.

10221002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221002000 is an abundant number, since it is smaller than the sum of its proper divisors (16740200944).

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

10221002000 is a wasteful number, since it uses less digits than its factorization.

10221002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464625 (or 464609 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10221002000 its reverse (20012201), we get a palindrome (10241014201).

The spelling of 10221002000 in words is "ten billion, two hundred twenty-one million, two thousand".