20002102222120 has 64 divisors (see below), whose sum is σ = 47653561033920. Its totient is φ = 7529967105024.

The previous prime is 20002102222079. The next prime is 20002102222121. The reversal of 20002102222120 is 2122220120002.

It is a junction number, because it is equal to n+sod(n) for n = 20002102222094 and 20002102222103.

It is not an unprimeable number, because it can be changed into a prime (20002102222121) 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, 22051879 + ... + 22941001.

It is an arithmetic number, because the mean of its divisors is an integer number (744586891155).

Almost surely, 2^{20002102222120} is an apocalyptic number.

20002102222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002102222120 is an abundant number, since it is smaller than the sum of its proper divisors (27651458811800).

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

20002102222120 is a wasteful number, since it uses less digits than its factorization.

20002102222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922234 (or 922230 counting only the distinct ones).

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

Adding to 20002102222120 its reverse (2122220120002), we get a palindrome (22124322342122).

The spelling of 20002102222120 in words is "twenty trillion, two billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty".