1100201210020 has 48 divisors (see below), whose sum is σ = 2520772128000. Its totient is φ = 400023774720.

The previous prime is 1100201209997. The next prime is 1100201210027. The reversal of 1100201210020 is 200121020011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1100201209979 and 1100201210006.

It is not an unprimeable number, because it can be changed into a prime (1100201210027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1501381 + ... + 2110579.

It is an arithmetic number, because the mean of its divisors is an integer number (52516086000).

Almost surely, 2^{1100201210020} is an apocalyptic number.

1100201210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100201210020 is an abundant number, since it is smaller than the sum of its proper divisors (1420570917980).

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

1100201210020 is a wasteful number, since it uses less digits than its factorization.

1100201210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617428 (or 617426 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1100201210020 its reverse (200121020011), we get a palindrome (1300322230031).

The spelling of 1100201210020 in words is "one trillion, one hundred billion, two hundred one million, two hundred ten thousand, twenty".