11021021212120 has 32 divisors (see below), whose sum is σ = 24802011619920. Its totient is φ = 4407570459520.

The previous prime is 11021021212093. The next prime is 11021021212183. The reversal of 11021021212120 is 2121212012011.

It is a junction number, because it is equal to n+sod(n) for n = 11021021212094 and 11021021212103.

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, 25975222 + ... + 26396101.

Almost surely, 2^{11021021212120} is an apocalyptic number.

11021021212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021021212120 is an abundant number, since it is smaller than the sum of its proper divisors (13780990407800).

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

11021021212120 is a wasteful number, since it uses less digits than its factorization.

11021021212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52376595 (or 52376591 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11021021212120 its reverse (2121212012011), we get a palindrome (13142233224131).

The spelling of 11021021212120 in words is "eleven trillion, twenty-one billion, twenty-one million, two hundred twelve thousand, one hundred twenty".