10000021021120 has 112 divisors (see below), whose sum is σ = 25898189573088. Its totient is φ = 3655757721600.

The previous prime is 10000021021103. The next prime is 10000021021139. The reversal of 10000021021120 is 2112012000001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10000021021097 and 10000021021106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11480094 + ... + 12320413.

It is an arithmetic number, because the mean of its divisors is an integer number (231233835474).

Almost surely, 2^{10000021021120} is an apocalyptic number.

10000021021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10000021021120 is an abundant number, since it is smaller than the sum of its proper divisors (15898168551968).

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

10000021021120 is a wasteful number, since it uses less digits than its factorization.

10000021021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23800638 (or 23800628 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10000021021120 its reverse (2112012000001), we get a palindrome (12112033021121).

The spelling of 10000021021120 in words is "ten trillion, twenty-one million, twenty-one thousand, one hundred twenty".