1102020111020 has 12 divisors (see below), whose sum is σ = 2314242233184. Its totient is φ = 440808044400.

The previous prime is 1102020111011. The next prime is 1102020111047. The reversal of 1102020111020 is 201110202011.

It is a junction number, because it is equal to n+sod(n) for n = 1102020110992 and 1102020111010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27550502756 + ... + 27550502795.

It is an arithmetic number, because the mean of its divisors is an integer number (192853519432).

Almost surely, 2^{1102020111020} is an apocalyptic number.

1102020111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102020111020 is an abundant number, since it is smaller than the sum of its proper divisors (1212222122164).

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

1102020111020 is a wasteful number, since it uses less digits than its factorization.

1102020111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55101005560 (or 55101005558 counting only the distinct ones).

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

Adding to 1102020111020 its reverse (201110202011), we get a palindrome (1303130313031).

Subtracting from 1102020111020 its reverse (201110202011), we obtain a palindrome (900909909009).

The spelling of 1102020111020 in words is "one trillion, one hundred two billion, twenty million, one hundred eleven thousand, twenty".