20202102220120 has 64 divisors (see below), whose sum is σ = 47432860139520. Its totient is φ = 7729200530304.

The previous prime is 20202102220109. The next prime is 20202102220121. The reversal of 20202102220120 is 2102220120202.

It is a super-2 number, since 2×20202102220120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20202102220094 and 20202102220103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202102220121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24103209 + ... + 24927271.

It is an arithmetic number, because the mean of its divisors is an integer number (741138439680).

Almost surely, 2^{20202102220120} is an apocalyptic number.

20202102220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202102220120 is an abundant number, since it is smaller than the sum of its proper divisors (27230757919400).

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

20202102220120 is a wasteful number, since it uses less digits than its factorization.

20202102220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850744 (or 850740 counting only the distinct ones).

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

Adding to 20202102220120 its reverse (2102220120202), we get a palindrome (22304322340322).

The spelling of 20202102220120 in words is "twenty trillion, two hundred two billion, one hundred two million, two hundred twenty thousand, one hundred twenty".