1011100202120 has 32 divisors (see below), whose sum is σ = 2275378542720. Its totient is φ = 404368420800.

The previous prime is 1011100202117. The next prime is 1011100202137. The reversal of 1011100202120 is 212020011101.

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, 2010512 + ... + 2462591.

It is an arithmetic number, because the mean of its divisors is an integer number (71105579460).

Almost surely, 2^{1011100202120} is an apocalyptic number.

1011100202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011100202120 is an abundant number, since it is smaller than the sum of its proper divisors (1264278340600).

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

1011100202120 is a wasteful number, since it uses less digits than its factorization.

1011100202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478765 (or 4478761 counting only the distinct ones).

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

Adding to 1011100202120 its reverse (212020011101), we get a palindrome (1223120213221).

The spelling of 1011100202120 in words is "one trillion, eleven billion, one hundred million, two hundred two thousand, one hundred twenty".