21220010011120 has 40 divisors (see below), whose sum is σ = 49347832023216. Its totient is φ = 8486058413568.

The previous prime is 21220010011063. The next prime is 21220010011139. The reversal of 21220010011120 is 2111001002212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 21220010011120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30048637 + ... + 30746716.

Almost surely, 2^{21220010011120} is an apocalyptic number.

21220010011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21220010011120 is an abundant number, since it is smaller than the sum of its proper divisors (28127822012096).

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

21220010011120 is a wasteful number, since it uses less digits than its factorization.

21220010011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60799729 (or 60799723 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21220010011120 its reverse (2111001002212), we get a palindrome (23331011013332).

The spelling of 21220010011120 in words is "twenty-one trillion, two hundred twenty billion, ten million, eleven thousand, one hundred twenty".