1001202101010 has 48 divisors (see below), whose sum is σ = 2603406326040. Its totient is φ = 266958420480.

The previous prime is 1001202100973. The next prime is 1001202101027. The reversal of 1001202101010 is 101012021001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 745371495801 + 255830605209 = 863349^2 + 505797^2 .

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 = 1001202100983 and 1001202101001.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 245226 + ... + 1436154.

Almost surely, 2^{1001202101010} is an apocalyptic number.

1001202101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001202101010 is an abundant number, since it is smaller than the sum of its proper divisors (1602204225030).

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

1001202101010 is a wasteful number, since it uses less digits than its factorization.

1001202101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200283 (or 1200280 counting only the distinct ones).

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

Adding to 1001202101010 its reverse (101012021001), we get a palindrome (1102214122011).

The spelling of 1001202101010 in words is "one trillion, one billion, two hundred two million, one hundred one thousand, ten".