2130202321220 has 12 divisors (see below), whose sum is σ = 4473424874604. Its totient is φ = 852080928480.

The previous prime is 2130202321213. The next prime is 2130202321297. The reversal of 2130202321220 is 221232020312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 290158904896 + 1840043416324 = 538664^2 + 1356482^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 106510116061 = 2130202321220 / (2 + 1 + 3 + 0 + 2 + 0 + 2 + 3 + 2 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 2130202321192 and 2130202321201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53255058011 + ... + 53255058050.

It is an arithmetic number, because the mean of its divisors is an integer number (372785406217).

Almost surely, 2^{2130202321220} is an apocalyptic number.

2130202321220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130202321220 is an abundant number, since it is smaller than the sum of its proper divisors (2343222553384).

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

2130202321220 is a wasteful number, since it uses less digits than its factorization.

2130202321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106510116070 (or 106510116068 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2130202321220 its reverse (221232020312), we get a palindrome (2351434341532).

The spelling of 2130202321220 in words is "two trillion, one hundred thirty billion, two hundred two million, three hundred twenty-one thousand, two hundred twenty".