1020200120010 has 80 divisors (see below), whose sum is σ = 2743362940032. Its totient is φ = 272037679200.

The previous prime is 1020200119999. The next prime is 1020200120047. The reversal of 1020200120010 is 100210020201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1020200119974 and 1020200120001.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23169115 + ... + 23213105.

Almost surely, 2^{1020200120010} is an apocalyptic number.

1020200120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020200120010 is an abundant number, since it is smaller than the sum of its proper divisors (1723162820022).

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

1020200120010 is a wasteful number, since it uses less digits than its factorization.

1020200120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72641 (or 72632 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1020200120010 its reverse (100210020201), we get a palindrome (1120410140211).

The spelling of 1020200120010 in words is "one trillion, twenty billion, two hundred million, one hundred twenty thousand, ten".