20021202011120 has 160 divisors (see below), whose sum is σ = 49999897230336. Its totient is φ = 7428524544000.

The previous prime is 20021202011119. The next prime is 20021202011201. The reversal of 20021202011120 is 2111020212002.

It is a junction number, because it is equal to n+sod(n) for n = 20021202011095 and 20021202011104.

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 31 ways as a sum of consecutive naturals, for example, 275256197 + ... + 275328923.

Almost surely, 2^{20021202011120} is an apocalyptic number.

20021202011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20021202011120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24999948615168).

20021202011120 is an abundant number, since it is smaller than the sum of its proper divisors (29978695219216).

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

20021202011120 is a wasteful number, since it uses less digits than its factorization.

20021202011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75679 (or 75673 counting only the distinct ones).

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

Adding to 20021202011120 its reverse (2111020212002), we get a palindrome (22132222223122).

The spelling of 20021202011120 in words is "twenty trillion, twenty-one billion, two hundred two million, eleven thousand, one hundred twenty".