1001202021092 has 36 divisors (see below), whose sum is σ = 2194942897980. Its totient is φ = 396079919424.

The previous prime is 1001202021077. The next prime is 1001202021103. The reversal of 1001202021092 is 2901202021001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135066540196 + 866135480896 = 367514^2 + 930664^2 .

It is a super-2 number, since 2×1001202021092² (a number of 25 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 196465667 + ... + 196470762.

It is an arithmetic number, because the mean of its divisors is an integer number (60970636055).

Almost surely, 2^{1001202021092} is an apocalyptic number.

It is an amenable number.

1001202021092 is an abundant number, since it is smaller than the sum of its proper divisors (1193740876888).

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

1001202021092 is a wasteful number, since it uses less digits than its factorization.

1001202021092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392936460 (or 392936451 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1001202021092 its reverse (2901202021001), we get a palindrome (3902404042093).

It can be divided in two parts, 100120 and 2021092, that added together give a palindrome (2121212).

The spelling of 1001202021092 in words is "one trillion, one billion, two hundred two million, twenty-one thousand, ninety-two".