10101010020012 has 18 divisors (see below), whose sum is σ = 25533108661788. Its totient is φ = 3367003339992.

The previous prime is 10101010020011. The next prime is 10101010020019. The reversal of 10101010020012 is 21002001010101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

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 = 10101010019976 and 10101010020003.

It is not an unprimeable number, because it can be changed into a prime (10101010020011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140291805798 + ... + 140291805869.

It is an arithmetic number, because the mean of its divisors is an integer number (1418506036766).

Almost surely, 2^{10101010020012} is an apocalyptic number.

10101010020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10101010020012 is an abundant number, since it is smaller than the sum of its proper divisors (15432098641776).

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

10101010020012 is a wasteful number, since it uses less digits than its factorization.

10101010020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280583611677 (or 280583611672 counting only the distinct ones).

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

Adding to 10101010020012 its reverse (21002001010101), we get a palindrome (31103011030113).

The spelling of 10101010020012 in words is "ten trillion, one hundred one billion, ten million, twenty thousand, twelve".