20210102202220 has 96 divisors (see below), whose sum is σ = 48552134400000. Its totient is φ = 6922339501824.

The previous prime is 20210102202209. The next prime is 20210102202263. The reversal of 20210102202220 is 2220220101202.

It is a junction number, because it is equal to n+sod(n) for n = 20210102202194 and 20210102202203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816590406 + ... + 816615154.

It is an arithmetic number, because the mean of its divisors is an integer number (505751400000).

Almost surely, 2^{20210102202220} is an apocalyptic number.

20210102202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210102202220 is an abundant number, since it is smaller than the sum of its proper divisors (28342032197780).

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

20210102202220 is a wasteful number, since it uses less digits than its factorization.

20210102202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30287 (or 30285 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20210102202220 its reverse (2220220101202), we get a palindrome (22430322303422).

The spelling of 20210102202220 in words is "twenty trillion, two hundred ten billion, one hundred two million, two hundred two thousand, two hundred twenty".