121122021111020 has 24 divisors (see below), whose sum is σ = 254356594151184. Its totient is φ = 48448741812416.

The previous prime is 121122021111019. The next prime is 121122021111023. The reversal of 121122021111020 is 20111120221121.

121122021111020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 121122021111020.

It is not an unprimeable number, because it can be changed into a prime (121122021111023) 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, 12335807 + ... + 19859913.

It is an arithmetic number, because the mean of its divisors is an integer number (10598191422966).

Almost surely, 2^{121122021111020} is an apocalyptic number.

121122021111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122021111020 is an abundant number, since it is smaller than the sum of its proper divisors (133234573040164).

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

121122021111020 is a wasteful number, since it uses less digits than its factorization.

121122021111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329009 (or 8329007 counting only the distinct ones).

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

Adding to 121122021111020 its reverse (20111120221121), we get a palindrome (141233141332141).

The spelling of 121122021111020 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, twenty-one million, one hundred eleven thousand, twenty".