1020200010120 has 128 divisors (see below), whose sum is σ = 3400916601600. Its totient is φ = 272033344512.

The previous prime is 1020200010113. The next prime is 1020200010131. The reversal of 1020200010120 is 210100020201.

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

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, 20044224 + ... + 20095056.

It is an arithmetic number, because the mean of its divisors is an integer number (26569660950).

Almost surely, 2^{1020200010120} is an apocalyptic number.

1020200010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020200010120 is an abundant number, since it is smaller than the sum of its proper divisors (2380716591480).

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

1020200010120 is a wasteful number, since it uses less digits than its factorization.

1020200010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69436 (or 69426 counting only the distinct ones).

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

Adding to 1020200010120 its reverse (210100020201), we get a palindrome (1230300030321).

The spelling of 1020200010120 in words is "one trillion, twenty billion, two hundred million, ten thousand, one hundred twenty".