21022010001120 has 96 divisors (see below), whose sum is σ = 66354198503040. Its totient is φ = 5594452021760.

The previous prime is 21022010001089. The next prime is 21022010001169. The reversal of 21022010001120 is 2110001022012.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 21022010001096 and 21022010001105.

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, 44362950 + ... + 44834309.

It is an arithmetic number, because the mean of its divisors is an integer number (691189567740).

Almost surely, 2^{21022010001120} is an apocalyptic number.

21022010001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022010001120 is an abundant number, since it is smaller than the sum of its proper divisors (45332188501920).

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

21022010001120 is a wasteful number, since it uses less digits than its factorization.

21022010001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89197768 (or 89197760 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21022010001120 its reverse (2110001022012), we get a palindrome (23132011023132).

The spelling of 21022010001120 in words is "twenty-one trillion, twenty-two billion, ten million, one thousand, one hundred twenty".