13220202020 has 12 divisors (see below), whose sum is σ = 27762424284. Its totient is φ = 5288080800.

The previous prime is 13220202007. The next prime is 13220202041. The reversal of 13220202020 is 2020202231.

It can be written as a sum of positive squares in 2 ways, for example, as 6966239296 + 6253962724 = 83464^2 + 79082^2 .

It is a super-2 number, since 2×13220202020² (a number of 21 digits) contains 22 as substring.

13220202020 is a modest number, since divided by 202020 gives 13220 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 13220201986 and 13220202004.

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, 330505031 + ... + 330505070.

It is an arithmetic number, because the mean of its divisors is an integer number (2313535357).

Almost surely, 2^13220202020 is an apocalyptic number.

13220202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220202020 is an abundant number, since it is smaller than the sum of its proper divisors (14542222264).

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

13220202020 is a wasteful number, since it uses less digits than its factorization.

13220202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661010110 (or 661010108 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 13220202020 its reverse (2020202231), we get a palindrome (15240404251).

The spelling of 13220202020 in words is "thirteen billion, two hundred twenty million, two hundred two thousand, twenty".