121033221013 has 8 divisors (see below), whose sum is σ = 127465488800. Its totient is φ = 114607163088.

The previous prime is 121033220969. The next prime is 121033221019. The reversal of 121033221013 is 310122330121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121033221013 - 2²¹ = 121031123861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121033221019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1512423 + ... + 1590436.

It is an arithmetic number, because the mean of its divisors is an integer number (15933186100).

Almost surely, 2^121033221013 is an apocalyptic number.

It is an amenable number.

121033221013 is a deficient number, since it is larger than the sum of its proper divisors (6432267787).

121033221013 is a wasteful number, since it uses less digits than its factorization.

121033221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104931.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121033221013 its reverse (310122330121), we get a palindrome (431155551134).

The spelling of 121033221013 in words is "one hundred twenty-one billion, thirty-three million, two hundred twenty-one thousand, thirteen".