21102220201120 has 48 divisors (see below), whose sum is σ = 52477889718240. Its totient is φ = 7996630811904.

The previous prime is 21102220201103. The next prime is 21102220201141. The reversal of 21102220201120 is 2110202220112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 21102220201094 and 21102220201103.

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, 3470756862 + ... + 3470762941.

It is an arithmetic number, because the mean of its divisors is an integer number (1093289369130).

Almost surely, 2^{21102220201120} is an apocalyptic number.

21102220201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21102220201120 is an abundant number, since it is smaller than the sum of its proper divisors (31375669517120).

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

21102220201120 is a wasteful number, since it uses less digits than its factorization.

21102220201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6941519837 (or 6941519829 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21102220201120 its reverse (2110202220112), we get a palindrome (23212422421232).

The spelling of 21102220201120 in words is "twenty-one trillion, one hundred two billion, two hundred twenty million, two hundred one thousand, one hundred twenty".