11211020011020 has 48 divisors (see below), whose sum is σ = 32058746592768. Its totient is φ = 2925996711360.

The previous prime is 11211020010959. The next prime is 11211020011049. The reversal of 11211020011020 is 2011002011211.

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 = 11211020010987 and 11211020011005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1987766686 + ... + 1987772325.

It is an arithmetic number, because the mean of its divisors is an integer number (667890554016).

Almost surely, 2^{11211020011020} is an apocalyptic number.

11211020011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211020011020 is an abundant number, since it is smaller than the sum of its proper divisors (20847726581748).

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

11211020011020 is a wasteful number, since it uses less digits than its factorization.

11211020011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975539070 (or 3975539068 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11211020011020 its reverse (2011002011211), we get a palindrome (13222022022231).

The spelling of 11211020011020 in words is "eleven trillion, two hundred eleven billion, twenty million, eleven thousand, twenty".