121100222003 has 4 divisors (see below), whose sum is σ = 121158194520. Its totient is φ = 121042249488.

The previous prime is 121100221981. The next prime is 121100222011. The reversal of 121100222003 is 300222001121.

It is a happy number.

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 121100222003 - 2⁸ = 121100221747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100222063) 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, 28983125 + ... + 28987302.

It is an arithmetic number, because the mean of its divisors is an integer number (30289548630).

Almost surely, 2^121100222003 is an apocalyptic number.

121100222003 is a deficient number, since it is larger than the sum of its proper divisors (57972517).

121100222003 is an equidigital number, since it uses as much as digits as its factorization.

121100222003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57972516.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121100222003 its reverse (300222001121), we get a palindrome (421322223124).

The spelling of 121100222003 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, three".