1020201001120 has 96 divisors (see below), whose sum is σ = 2757582430848. Its totient is φ = 349397203968.

The previous prime is 1020201001091. The next prime is 1020201001163. The reversal of 1020201001120 is 211001020201.

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 = 1020201001097 and 1020201001106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513694 + ... + 1517986.

It is an arithmetic number, because the mean of its divisors is an integer number (28724816988).

Almost surely, 2^{1020201001120} is an apocalyptic number.

1020201001120 is a gapful number since it is divisible by the number (10) 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 1020201001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378791215424).

1020201001120 is an abundant number, since it is smaller than the sum of its proper divisors (1737381429728).

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

1020201001120 is a wasteful number, since it uses less digits than its factorization.

1020201001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005222 (or 1005214 counting only the distinct ones).

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

Adding to 1020201001120 its reverse (211001020201), we get a palindrome (1231202021321).

The spelling of 1020201001120 in words is "one trillion, twenty billion, two hundred one million, one thousand, one hundred twenty".