11122121211020 has 24 divisors (see below), whose sum is σ = 24585741625200. Its totient is φ = 4214698564032.

The previous prime is 11122121210987. The next prime is 11122121211023. The reversal of 11122121211020 is 2011212122111.

It is a self number, because there is not a number n which added to its sum of digits gives 11122121211020.

It is not an unprimeable number, because it can be changed into a prime (11122121211023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14634369635 + ... + 14634370394.

It is an arithmetic number, because the mean of its divisors is an integer number (1024405901050).

Almost surely, 2^{11122121211020} is an apocalyptic number.

11122121211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122121211020 is an abundant number, since it is smaller than the sum of its proper divisors (13463620414180).

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

11122121211020 is a wasteful number, since it uses less digits than its factorization.

11122121211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29268740057 (or 29268740055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11122121211020 its reverse (2011212122111), we get a palindrome (13133333333131).

It can be divided in two parts, 1112212 and 1211020, that added together give a palindrome (2323232).

The spelling of 11122121211020 in words is "eleven trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred eleven thousand, twenty".