1100210121020 has 24 divisors (see below), whose sum is σ = 2317297177104. Its totient is φ = 438778158336.

The previous prime is 1100210121007. The next prime is 1100210121067. The reversal of 1100210121020 is 201210120011.

It is a junction number, because it is equal to n+sod(n) for n = 1100210120992 and 1100210121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81611222 + ... + 81624701.

It is an arithmetic number, because the mean of its divisors is an integer number (96554049046).

Almost surely, 2^{1100210121020} is an apocalyptic number.

1100210121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100210121020 is an abundant number, since it is smaller than the sum of its proper divisors (1217087056084).

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

1100210121020 is a wasteful number, since it uses less digits than its factorization.

1100210121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163236269 (or 163236267 counting only the distinct ones).

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

Adding to 1100210121020 its reverse (201210120011), we get a palindrome (1301420241031).

The spelling of 1100210121020 in words is "one trillion, one hundred billion, two hundred ten million, one hundred twenty-one thousand, twenty".