102020010012020 has 12 divisors (see below), whose sum is σ = 214242021025284. Its totient is φ = 40808004004800.

The previous prime is 102020010012001. The next prime is 102020010012077. The reversal of 102020010012020 is 20210010020201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44060840211556 + 57959169800464 = 6637834^2 + 7613092^2 .

It is a super-2 number, since 2×102020010012020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102020010011992 and 102020010012010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550500250281 + ... + 2550500250320.

It is an arithmetic number, because the mean of its divisors is an integer number (17853501752107).

Almost surely, 2^{102020010012020} is an apocalyptic number.

102020010012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020010012020 is an abundant number, since it is smaller than the sum of its proper divisors (112222011013264).

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

102020010012020 is a wasteful number, since it uses less digits than its factorization.

102020010012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101000500610 (or 5101000500608 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102020010012020 its reverse (20210010020201), we get a palindrome (122230020032221).

The spelling of 102020010012020 in words is "one hundred two trillion, twenty billion, ten million, twelve thousand, twenty".