1011010101201 has 32 divisors (see below), whose sum is σ = 1569184972800. Its totient is φ = 642529253520.

The previous prime is 1011010101181. The next prime is 1011010101203. The reversal of 1011010101201 is 1021010101101.

It is not a de Polignac number, because 1011010101201 - 2¹⁵ = 1011010068433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1011010101203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8958081 + ... + 9070238.

It is an arithmetic number, because the mean of its divisors is an integer number (49037030400).

Almost surely, 2^{1011010101201} is an apocalyptic number.

It is an amenable number.

1011010101201 is a deficient number, since it is larger than the sum of its proper divisors (558174871599).

1011010101201 is a wasteful number, since it uses less digits than its factorization.

1011010101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18028426 (or 18028420 counting only the distinct ones).

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

Adding to 1011010101201 its reverse (1021010101101), we get a palindrome (2032020202302).

The spelling of 1011010101201 in words is "one trillion, eleven billion, ten million, one hundred one thousand, two hundred one".