10221001000 has 64 divisors (see below), whose sum is σ = 27333895680. Its totient is φ = 3504340800.

The previous prime is 10221000983. The next prime is 10221001051. The reversal of 10221001000 is 10012201.

It is a super-2 number, since 2×10221001000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7).

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, 723072 + ... + 737071.

It is an arithmetic number, because the mean of its divisors is an integer number (427092120).

Almost surely, 2^10221001000 is an apocalyptic number.

10221001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221001000 is an abundant number, since it is smaller than the sum of its proper divisors (17112894680).

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

10221001000 is a wasteful number, since it uses less digits than its factorization.

10221001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460171 (or 1460157 counting only the distinct ones).

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

Adding to 10221001000 its reverse (10012201), we get a palindrome (10231013201).

The spelling of 10221001000 in words is "ten billion, two hundred twenty-one million, one thousand".