21310222011120 has 480 divisors, whose sum is σ = 84063079047168. Its totient is φ = 4736898496512.

The previous prime is 21310222011107. The next prime is 21310222011121. The reversal of 21310222011120 is 2111022201312.

21310222011120 is a `hidden beast` number, since 2 + 1 + 310 + 2 + 220 + 11 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21310222011093 and 21310222011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310222011121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36903657 + ... + 37476663.

Almost surely, 2^{21310222011120} is an apocalyptic number.

21310222011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21310222011120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42031539523584).

21310222011120 is an abundant number, since it is smaller than the sum of its proper divisors (62752857036048).

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

21310222011120 is a wasteful number, since it uses less digits than its factorization.

21310222011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573237 (or 573228 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21310222011120 its reverse (2111022201312), we get a palindrome (23421244212432).

The spelling of 21310222011120 in words is "twenty-one trillion, three hundred ten billion, two hundred twenty-two million, eleven thousand, one hundred twenty".