213002301220 has 24 divisors (see below), whose sum is σ = 448586523000. Its totient is φ = 84956788992.

The previous prime is 213002301217. The next prime is 213002301229. The reversal of 213002301220 is 22103200312.

It can be written as a sum of positive squares in 4 ways, for example, as 94362009856 + 118640291364 = 307184^2 + 344442^2 .

It is a super-2 number, since 2×213002301220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213002301194 and 213002301203.

It is not an unprimeable number, because it can be changed into a prime (213002301229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15251065 + ... + 15265024.

It is an arithmetic number, because the mean of its divisors is an integer number (18691105125).

Almost surely, 2^213002301220 is an apocalyptic number.

213002301220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213002301220 is an abundant number, since it is smaller than the sum of its proper divisors (235584221780).

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

213002301220 is a wasteful number, since it uses less digits than its factorization.

213002301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30516447 (or 30516445 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 213002301220 its reverse (22103200312), we get a palindrome (235105501532).

The spelling of 213002301220 in words is "two hundred thirteen billion, two million, three hundred one thousand, two hundred twenty".