11020012001220 has 72 divisors (see below), whose sum is σ = 31449208101696. Its totient is φ = 2883223221632.

The previous prime is 11020012001101. The next prime is 11020012001231. The reversal of 11020012001220 is 2210021002011.

11020012001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11020012001196 and 11020012001205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32524032 + ... + 32861111.

It is an arithmetic number, because the mean of its divisors is an integer number (436794556968).

Almost surely, 2^{11020012001220} is an apocalyptic number.

11020012001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020012001220 is an abundant number, since it is smaller than the sum of its proper divisors (20429196100476).

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

11020012001220 is a wasteful number, since it uses less digits than its factorization.

11020012001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65385261 (or 65385206 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11020012001220 its reverse (2210021002011), we get a palindrome (13230033003231).

The spelling of 11020012001220 in words is "eleven trillion, twenty billion, twelve million, one thousand, two hundred twenty".