121010210221003 has 4 divisors (see below), whose sum is σ = 128128457881080. Its totient is φ = 113891962560928.

The previous prime is 121010210220983. The next prime is 121010210221049. The reversal of 121010210221003 is 300122012010121.

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 121010210221003 - 2¹⁷ = 121010210089931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010210221903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3559123830013 + ... + 3559123830046.

It is an arithmetic number, because the mean of its divisors is an integer number (32032114470270).

Almost surely, 2^{121010210221003} is an apocalyptic number.

121010210221003 is a deficient number, since it is larger than the sum of its proper divisors (7118247660077).

121010210221003 is an equidigital number, since it uses as much as digits as its factorization.

121010210221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118247660076.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121010210221003 its reverse (300122012010121), we get a palindrome (421132222231124).

The spelling of 121010210221003 in words is "one hundred twenty-one trillion, ten billion, two hundred ten million, two hundred twenty-one thousand, three".