20102111222020 has 48 divisors (see below), whose sum is σ = 44172545598720. Its totient is φ = 7669818417536.

The previous prime is 20102111222003. The next prime is 20102111222021. The reversal of 20102111222020 is 2022211120102.

It is a happy number.

It is a super-4 number, since 4×20102111222020⁴ (a number of 54 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20102111221985 and 20102111222003.

It is not an unprimeable number, because it can be changed into a prime (20102111222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60698707 + ... + 61028986.

It is an arithmetic number, because the mean of its divisors is an integer number (920261366640).

Almost surely, 2^{20102111222020} is an apocalyptic number.

20102111222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102111222020 is an abundant number, since it is smaller than the sum of its proper divisors (24070434376700).

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

20102111222020 is a wasteful number, since it uses less digits than its factorization.

20102111222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121728084 (or 121728082 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102111222020 its reverse (2022211120102), we get a palindrome (22124322342122).

The spelling of 20102111222020 in words is "twenty trillion, one hundred two billion, one hundred eleven million, two hundred twenty-two thousand, twenty".