121201101221003 has 4 divisors (see below), whose sum is σ = 125110814163648. Its totient is φ = 117291388278360.

The previous prime is 121201101220973. The next prime is 121201101221023. The reversal of 121201101221003 is 300122101102121.

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 121201101221003 - 2¹⁶ = 121201101155467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201101221023) 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, 1954856471276 + ... + 1954856471337.

It is an arithmetic number, because the mean of its divisors is an integer number (31277703540912).

Almost surely, 2^{121201101221003} is an apocalyptic number.

121201101221003 is a deficient number, since it is larger than the sum of its proper divisors (3909712942645).

121201101221003 is an equidigital number, since it uses as much as digits as its factorization.

121201101221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909712942644.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121201101221003 its reverse (300122101102121), we get a palindrome (421323202323124).

The spelling of 121201101221003 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred one million, two hundred twenty-one thousand, three".