20020120102220 has 72 divisors (see below), whose sum is σ = 51040915298016. Its totient is φ = 6460274036736.

The previous prime is 20020120102181. The next prime is 20020120102231. The reversal of 20020120102220 is 2220102102002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20020120102195 and 20020120102204.

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 23 ways as a sum of consecutive naturals, for example, 247365869 + ... + 247446788.

Almost surely, 2^{20020120102220} is an apocalyptic number.

20020120102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020120102220 is an abundant number, since it is smaller than the sum of its proper divisors (31020795195796).

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

20020120102220 is a wasteful number, since it uses less digits than its factorization.

20020120102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494812707 (or 494812688 counting only the distinct ones).

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

Adding to 20020120102220 its reverse (2220102102002), we get a palindrome (22240222204222).

The spelling of 20020120102220 in words is "twenty trillion, twenty billion, one hundred twenty million, one hundred two thousand, two hundred twenty".