1000201021110 has 96 divisors (see below), whose sum is σ = 2694443525280. Its totient is φ = 257214956544.

The previous prime is 1000201021093. The next prime is 1000201021163. The reversal of 1000201021110 is 111201020001.

It is a happy number.

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 = 1000201021092 and 1000201021101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 952740 + ... + 1705319.

It is an arithmetic number, because the mean of its divisors is an integer number (28067120055).

Almost surely, 2^{1000201021110} is an apocalyptic number.

1000201021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000201021110 is an abundant number, since it is smaller than the sum of its proper divisors (1694242504170).

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

1000201021110 is a wasteful number, since it uses less digits than its factorization.

1000201021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658222 (or 2658219 counting only the distinct ones).

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

Adding to 1000201021110 its reverse (111201020001), we get a palindrome (1111402041111).

The spelling of 1000201021110 in words is "one trillion, two hundred one million, twenty-one thousand, one hundred ten".