121002021221203 has 4 divisors (see below), whose sum is σ = 121002050027880. Its totient is φ = 121001992414528.

The previous prime is 121002021221161. The next prime is 121002021221219. The reversal of 121002021221203 is 302122120200121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121002021221203 - 2¹³ = 121002021213011 is a prime.

It is a super-2 number, since 2×121002021221203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121002001221203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6745438 + ... + 16955971.

It is an arithmetic number, because the mean of its divisors is an integer number (30250512506970).

Almost surely, 2^{121002021221203} is an apocalyptic number.

121002021221203 is a deficient number, since it is larger than the sum of its proper divisors (28806677).

121002021221203 is an equidigital number, since it uses as much as digits as its factorization.

121002021221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28806676.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121002021221203 its reverse (302122120200121), we get a palindrome (423124141421324).

The spelling of 121002021221203 in words is "one hundred twenty-one trillion, two billion, twenty-one million, two hundred twenty-one thousand, two hundred three".