20002012202120 has 256 divisors, whose sum is σ = 51433667712000. Its totient is φ = 6944700026880.

The previous prime is 20002012202111. The next prime is 20002012202131. The reversal of 20002012202120 is 2120221020002.

It is a junction number, because it is equal to n+sod(n) for n = 20002012202095 and 20002012202104.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 296323094 + ... + 296390586.

It is an arithmetic number, because the mean of its divisors is an integer number (200912764500).

Almost surely, 2^{20002012202120} is an apocalyptic number.

20002012202120 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 20002012202120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25716833856000).

20002012202120 is an abundant number, since it is smaller than the sum of its proper divisors (31431655509880).

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

20002012202120 is a wasteful number, since it uses less digits than its factorization.

20002012202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67960 (or 67956 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20002012202120 its reverse (2120221020002), we get a palindrome (22122233222122).

The spelling of 20002012202120 in words is "twenty trillion, two billion, twelve million, two hundred two thousand, one hundred twenty".