20020021121120 has 48 divisors (see below), whose sum is σ = 47570694761520. Its totient is φ = 7961719371264.

The previous prime is 20020021121119. The next prime is 20020021121147. The reversal of 20020021121120 is 2112112002002.

It is a junction number, because it is equal to n+sod(n) for n = 20020021121095 and 20020021121104.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 361605650 + ... + 361661009.

It is an arithmetic number, because the mean of its divisors is an integer number (991056140865).

Almost surely, 2^{20020021121120} is an apocalyptic number.

20020021121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020021121120 is an abundant number, since it is smaller than the sum of its proper divisors (27550673640400).

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

20020021121120 is a wasteful number, since it uses less digits than its factorization.

20020021121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723266847 (or 723266839 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20020021121120 its reverse (2112112002002), we get a palindrome (22132133123122).

The spelling of 20020021121120 in words is "twenty trillion, twenty billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty".