20020210021220 has 48 divisors (see below), whose sum is σ = 42889899487680. Its totient is φ = 7847519700864.

The previous prime is 20020210021139. The next prime is 20020210021261. The reversal of 20020210021220 is 2212001202002.

It is a junction number, because it is equal to n+sod(n) for n = 20020210021195 and 20020210021204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26386634 + ... + 27134753.

It is an arithmetic number, because the mean of its divisors is an integer number (893539572660).

Almost surely, 2^{20020210021220} is an apocalyptic number.

20020210021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020210021220 is an abundant number, since it is smaller than the sum of its proper divisors (22869689466460).

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

20020210021220 is a wasteful number, since it uses less digits than its factorization.

20020210021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53521772 (or 53521770 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20020210021220 its reverse (2212001202002), we get a palindrome (22232211223222).

The spelling of 20020210021220 in words is "twenty trillion, twenty billion, two hundred ten million, twenty-one thousand, two hundred twenty".