1010210101020 has 72 divisors (see below), whose sum is σ = 3064408729200. Its totient is φ = 269380151040.

The previous prime is 1010210100983. The next prime is 1010210101049. The reversal of 1010210101020 is 201010120101.

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 = 1010210100993 and 1010210101011.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 6404056 + ... + 6559904.

It is an arithmetic number, because the mean of its divisors is an integer number (42561232350).

Almost surely, 2^{1010210101020} is an apocalyptic number.

1010210101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010210101020 is an abundant number, since it is smaller than the sum of its proper divisors (2054198628180).

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

1010210101020 is a wasteful number, since it uses less digits than its factorization.

1010210101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191875 (or 191870 counting only the distinct ones).

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

Adding to 1010210101020 its reverse (201010120101), we get a palindrome (1211220221121).

The spelling of 1010210101020 in words is "one trillion, ten billion, two hundred ten million, one hundred one thousand, twenty".