10000000021000 has 64 divisors (see below), whose sum is σ = 25527272808960. Its totient is φ = 3636363640000.

The previous prime is 10000000020979. The next prime is 10000000021051. The reversal of 10000000021000 is 12000000001.

It is a Harshad number since it is a multiple of its sum of digits (4).

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, 454534456 + ... + 454556455.

It is an arithmetic number, because the mean of its divisors is an integer number (398863637640).

Almost surely, 2^{10000000021000} is an apocalyptic number.

10000000021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10000000021000 is an abundant number, since it is smaller than the sum of its proper divisors (15527272787960).

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

10000000021000 is a wasteful number, since it uses less digits than its factorization.

10000000021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909090943 (or 909090929 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 10000000021000 its reverse (12000000001), we get a palindrome (10012000021001).

The spelling of 10000000021000 in words is "ten trillion, twenty-one thousand".