1020021012010 has 96 divisors (see below), whose sum is σ = 2478714867072. Its totient is φ = 293472541440.

The previous prime is 1020021012007. The next prime is 1020021012079. The reversal of 1020021012010 is 102101200201.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3789109 + ... + 4049368.

It is an arithmetic number, because the mean of its divisors is an integer number (25819946532).

Almost surely, 2^{1020021012010} is an apocalyptic number.

1020021012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020021012010 is an abundant number, since it is smaller than the sum of its proper divisors (1458693855062).

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

1020021012010 is a wasteful number, since it uses less digits than its factorization.

1020021012010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838528 (or 7838515 counting only the distinct ones).

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

Adding to 1020021012010 its reverse (102101200201), we get a palindrome (1122122212211).

The spelling of 1020021012010 in words is "one trillion, twenty billion, twenty-one million, twelve thousand, ten".