1011001010202 has 24 divisors (see below), whose sum is σ = 2200883724000. Its totient is φ = 335403177480.

The previous prime is 1011001010197. The next prime is 1011001010207. The reversal of 1011001010202 is 2020101001101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1011001010197) and next prime (1011001010207).

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 (1011001010207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133092702 + ... + 133100297.

It is an arithmetic number, because the mean of its divisors is an integer number (91703488500).

Almost surely, 2^{1011001010202} is an apocalyptic number.

1011001010202 is an abundant number, since it is smaller than the sum of its proper divisors (1189882713798).

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

1011001010202 is a wasteful number, since it uses less digits than its factorization.

1011001010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266193218 (or 266193215 counting only the distinct ones).

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

Adding to 1011001010202 its reverse (2020101001101), we get a palindrome (3031102011303).

The spelling of 1011001010202 in words is "one trillion, eleven billion, one million, ten thousand, two hundred two".