21053502201120 has 48 divisors (see below), whose sum is σ = 66318531935040. Its totient is φ = 5614267253504.

The previous prime is 21053502201119. The next prime is 21053502201131. The reversal of 21053502201120 is 2110220535012.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 21930730980 + ... + 21930731939.

It is an arithmetic number, because the mean of its divisors is an integer number (1381636081980).

Almost surely, 2^{21053502201120} is an apocalyptic number.

21053502201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21053502201120 is an abundant number, since it is smaller than the sum of its proper divisors (45265029733920).

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

21053502201120 is a wasteful number, since it uses less digits than its factorization.

21053502201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43861462937 (or 43861462929 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 21053502201120 its reverse (2110220535012), we get a palindrome (23163722736132).

The spelling of 21053502201120 in words is "twenty-one trillion, fifty-three billion, five hundred two million, two hundred one thousand, one hundred twenty".