1021010201010 has 128 divisors (see below), whose sum is σ = 2876148241920. Its totient is φ = 260431459200.

The previous prime is 1021010200919. The next prime is 1021010201027. The reversal of 1021010201010 is 101020101201.

It is a happy number.

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 = 1021010200983 and 1021010201001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 511891 + ... + 1517910.

It is an arithmetic number, because the mean of its divisors is an integer number (22469908140).

Almost surely, 2^{1021010201010} is an apocalyptic number.

1021010201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021010201010 is an abundant number, since it is smaller than the sum of its proper divisors (1855138040910).

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

1021010201010 is an equidigital number, since it uses as much as digits as its factorization.

1021010201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029852 (or 2029834 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1021010201010 its reverse (101020101201), we get a palindrome (1122030302211).

The spelling of 1021010201010 in words is "one trillion, twenty-one billion, ten million, two hundred one thousand, ten".