1100211021020 has 48 divisors (see below), whose sum is σ = 2334734847648. Its totient is φ = 435459256320.

The previous prime is 1100211021017. The next prime is 1100211021023. The reversal of 1100211021020 is 201201120011.

It is an interprime number because it is at equal distance from previous prime (1100211021017) and next prime (1100211021023).

It is a junction number, because it is equal to n+sod(n) for n = 1100211020992 and 1100211021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100211021023) 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 15 ways as a sum of consecutive naturals, for example, 9976904 + ... + 10086576.

It is an arithmetic number, because the mean of its divisors is an integer number (48640309326).

Almost surely, 2^{1100211021020} is an apocalyptic number.

1100211021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100211021020 is an abundant number, since it is smaller than the sum of its proper divisors (1234523826628).

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

1100211021020 is a wasteful number, since it uses less digits than its factorization.

1100211021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114950 (or 114948 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1100211021020 its reverse (201201120011), we get a palindrome (1301412141031).

The spelling of 1100211021020 in words is "one trillion, one hundred billion, two hundred eleven million, twenty-one thousand, twenty".