20010010210120 has 128 divisors (see below), whose sum is σ = 53589266357760. Its totient is φ = 6581137489920.

The previous prime is 20010010210103. The next prime is 20010010210139. The reversal of 20010010210120 is 2101201001002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20010010210097 and 20010010210106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12866329 + ... + 14337448.

It is an arithmetic number, because the mean of its divisors is an integer number (418666143420).

Almost surely, 2^{20010010210120} is an apocalyptic number.

20010010210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010010210120 is an abundant number, since it is smaller than the sum of its proper divisors (33579256147640).

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

20010010210120 is a wasteful number, since it uses less digits than its factorization.

20010010210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27203903 (or 27203899 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20010010210120 its reverse (2101201001002), we get a palindrome (22111211211122).

The spelling of 20010010210120 in words is "twenty trillion, ten billion, ten million, two hundred ten thousand, one hundred twenty".