11211002111020 has 24 divisors (see below), whose sum is σ = 23543384894064. Its totient is φ = 4484347423296.

The previous prime is 11211002111017. The next prime is 11211002111063. The reversal of 11211002111020 is 2011120011211.

It is a happy 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, 1595767 + ... + 4996846.

It is an arithmetic number, because the mean of its divisors is an integer number (980974370586).

Almost surely, 2^{11211002111020} is an apocalyptic number.

11211002111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211002111020 is an abundant number, since it is smaller than the sum of its proper divisors (12332382783044).

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

11211002111020 is a wasteful number, since it uses less digits than its factorization.

11211002111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6677649 (or 6677647 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11211002111020 its reverse (2011120011211), we get a palindrome (13222122122231).

The spelling of 11211002111020 in words is "eleven trillion, two hundred eleven billion, two million, one hundred eleven thousand, twenty".