20021202220120 has 32 divisors (see below), whose sum is σ = 46006166808000. Its totient is φ = 7838087676928.

The previous prime is 20021202220027. The next prime is 20021202220163. The reversal of 20021202220120 is 2102220212002.

It is a junction number, because it is equal to n+sod(n) for n = 20021202220094 and 20021202220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5324785945 + ... + 5324789704.

It is an arithmetic number, because the mean of its divisors is an integer number (1437692712750).

Almost surely, 2^{20021202220120} is an apocalyptic number.

20021202220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021202220120 is an abundant number, since it is smaller than the sum of its proper divisors (25984964587880).

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

20021202220120 is a wasteful number, since it uses less digits than its factorization.

20021202220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10649575707 (or 10649575703 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20021202220120 its reverse (2102220212002), we get a palindrome (22123422432122).

The spelling of 20021202220120 in words is "twenty trillion, twenty-one billion, two hundred two million, two hundred twenty thousand, one hundred twenty".