1011010101012 has 48 divisors (see below), whose sum is σ = 2759091899200. Its totient is φ = 319266347040.

The previous prime is 1011010100897. The next prime is 1011010101019. The reversal of 1011010101012 is 2101010101101.

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 = 1011010100985 and 1011010101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011010101019) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 246345439 + ... + 246349542.

Almost surely, 2^{1011010101012} is an apocalyptic number.

1011010101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1011010101012 is an abundant number, since it is smaller than the sum of its proper divisors (1748081798188).

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

1011010101012 is a wasteful number, since it uses less digits than its factorization.

1011010101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492695013 (or 492695005 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1011010101012 its reverse (2101010101101), we get a palindrome (3112020202113).

The spelling of 1011010101012 in words is "one trillion, eleven billion, ten million, one hundred one thousand, twelve".