1201110102020 has 24 divisors (see below), whose sum is σ = 2537435001024. Its totient is φ = 477567129056.

The previous prime is 1201110102011. The next prime is 1201110102029. The reversal of 1201110102020 is 202010111021.

It is an interprime number because it is at equal distance from previous prime (1201110102011) and next prime (1201110102029).

It is a junction number, because it is equal to n+sod(n) for n = 1201110101992 and 1201110102010.

It is not an unprimeable number, because it can be changed into a prime (1201110102029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179803562 + ... + 179810241.

It is an arithmetic number, because the mean of its divisors is an integer number (105726458376).

Almost surely, 2^{1201110102020} is an apocalyptic number.

1201110102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201110102020 is an abundant number, since it is smaller than the sum of its proper divisors (1336324899004).

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

1201110102020 is a wasteful number, since it uses less digits than its factorization.

1201110102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359613979 (or 359613977 counting only the distinct ones).

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

Adding to 1201110102020 its reverse (202010111021), we get a palindrome (1403120213041).

Subtracting from 1201110102020 its reverse (202010111021), we obtain a palindrome (999099990999).

The spelling of 1201110102020 in words is "one trillion, two hundred one billion, one hundred ten million, one hundred two thousand, twenty".