1020010210020 has 36 divisors (see below), whose sum is σ = 3094030970940. Its totient is φ = 272002722624.

The previous prime is 1020010210001. The next prime is 1020010210049. The reversal of 1020010210020 is 200120100201.

It can be written as a sum of positive squares in 2 ways, for example, as 134408757924 + 885601452096 = 366618^2 + 941064^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 1020010209984 and 1020010210011.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2833361515 + ... + 2833361874.

Almost surely, 2^{1020010210020} is an apocalyptic number.

1020010210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020010210020 is an abundant number, since it is smaller than the sum of its proper divisors (2074020760920).

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

1020010210020 is a wasteful number, since it uses less digits than its factorization.

1020010210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666723404 (or 5666723399 counting only the distinct ones).

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

Adding to 1020010210020 its reverse (200120100201), we get a palindrome (1220130310221).

The spelling of 1020010210020 in words is "one trillion, twenty billion, ten million, two hundred ten thousand, twenty".